{"title":"Our Power Amplifier Collection","description":"","products":[{"product_id":"jadis-ja800-flagship-tube-amplifier-six-chassis-best-ever-made-nos-new-old-stock","title":"Jadis JA800 Flagship Tube Amplifier - SIX Chassis! (Best Ever Made) - New Old Stock - w\/Free Shipping","description":"\u003cp\u003eWe are pleased to present a rare opportunity to own one of the finest and most exclusive amplifiers ever made. \u003cbr\u003e\u003cbr\u003eThe JA800 was available in several configurations, and this the most extravagant and rare six chassis version. That's right, six entirely separate chassis for two channels of amplification. The two larger units are the power supplies, while the four smaller units are the output stages. It can deliver 400W per side in its most powerful configuration. \u003cbr\u003e\u003cbr\u003eThis is a massive and heavy amplifier requiring quite a bit of real estate to lay out properly. They are very heavy, requiring at least three people to set them in place safely. The included service straps allow you to safely remove them from the shipping boxes and drop them in place. \u003cbr\u003e\u003cbr\u003eAll Jadis products are still hand crafted in France, while the metalwork is done in Germany. \u003cbr\u003e\u003cbr\u003eThe owner of these units had a custom steel floor stand made to get the units off the floor about 10 inches. The stand consists of very high quality welded construction with powder coating all around. It is sized to perfectly fit the amplifiers, giving a custom and well refined look. You do not need to use these floor stands as we've seen others place the units directly on the floor, or on some sort of plinth. \u003cbr\u003e\u003cbr\u003eThis amplifier came to us from a deceased collector and extreme audiophile that was in the process of assembling a very complex reference Jadis system comprised of over *20* components. We believe the intent was to drive the bass drivers on the Jadis Eurythhmie speakers with these amps, while utilizing the JA845's for the other drivers. \u003cbr\u003e\u003cbr\u003eCondition is like new or NOS (New Old Stock). There is no evidence that these units were ever used or even fired up. The tubes (KT90) are brand new and all the protective shipping material is still in place underneath the tube cages. There is only some evidence they were removed from their boxes at some point. Likely so they could be measured and laid out to facilitate the design of the custom stand.\u003cbr\u003e\u003cbr\u003eWe would like to keep these units in complete \"un-used\" condition, and will not fire them up unless the new owner requests prior to shipping. We do guarantee these will arrive in working condition.\u003c\/p\u003e\n\u003cp\u003eThese ship for free anywhere in the contiguous 48 states. Worldwide shipping also available for an additional $400 fee. \u003cbr\u003e\u003cbr\u003eObvious as NOS rated, these come with all of their original packaging, accessories, power cords, umbilical cords, manuals etc, as if they just left the factory. \u003cbr\u003e\u003cbr\u003eAnd if you'd like to assemble a complete NOS Jadis system, please \u003ca title=\"Contact SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/pages\/how-to-reach-us\" target=\"_blank\"\u003econtact us\u003c\/a\u003e as we have enough stock for several systems. \u003ca title=\"The SkyFi Audio Jadis Collection\" href=\"https:\/\/skyfiaudio.com\/collections\/our-jadis-collection\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to view all of our currently listed Jadis pieces.\u003cbr\u003e\u003cbr\u003eThis amplifier is no longer made by Jadis, and their current flagship is the JA500 with an inferior four chassis smaller design. \u003cbr\u003e\u003cbr\u003eIn 1997 when this was manufactured it retailed for $80k. That's \u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e$128,000+\u003c\/span\u003e\u003c\/strong\u003e in today's dollars when adjusted for inflation. \u003cbr\u003e\u003cbr\u003eThis item can ship worldwide carefully packed in its original boxes on a pallet. There are a total of seven large boxes\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eItem\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eIncluded\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eOriginal Boxes\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\" valign=\"top\"\u003eYes Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eManual\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003eYes Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eRemote\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003eNot Applicable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eCables\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003eYes Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003ePhysical Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\" valign=\"top\"\u003e10 (New Old Stock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eWorking Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e10 (New Old Stock)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ciframe title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE\" height=\"720\" width=\"1280\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Jadis","offers":[{"title":"Default Title","offer_id":32407711842390,"sku":"101488","price":70700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/jadis-ja800-flagship-tube-amplifier-six-chassis-best-ever-made-new-old-stock-w-free-shipping-691.jpg?v=1774461845"},{"product_id":"sony-es-ta-n1-tan1-amplifier-and-ta-e1-tae1-preamplifier-set-the-best-sony-ever-made-scd1-scd-1","title":"Sony ES TA-N1 Amplifier and TA-E1 Preamplifier Set - The Best Sony Ever Made - w\/Free Shipping","description":"\u003cp\u003eSuper rare and collectible amp\/preamp set from Sony, and hands down the best kit they ever produced.\u003c\/p\u003e\n\u003cp\u003eOne of only 100 sets EVER produced! Also known as the Sony 1 Series.\u003cbr\u003e\u003cbr\u003eThe preamp was tested and calibrated right here in our shop. The amplifier only needed testing as it was otherwise working right to manufacturer spec.\u003cbr\u003e\u003cbr\u003ePhysical condition on the preamp is a 9\/10. The amplifier is rated a 7\/10 because of one ding on the side metalwork.\u003c\/p\u003e\n\u003cp\u003eOverall very very clean and striking. \u003cbr\u003e\u003cbr\u003ePlease note that this set is not for the weak. The amplifier alone must weigh close to 150 lbs. It will ship via Freight for free to the lower 48 US states. Worldwide shipping also available for an additional $400 fee. Local courier service is also available.\u003c\/p\u003e\n\u003cp\u003eYour purchase also includes a custom cover. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease see the linked manuals below or our photos for full specifications. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/Sony-TA-N1-1-Series-Manual.pdf?v=1613671475\" title=\"Sony TA-N1 Amplifier Owner's Manual on SkyFi Audio\" target=\"_blank\"\u003eSony TA-N1 Amplifier Owner's Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/Sony-TA-E1-1-Series-Manual.pdf?v=1613671475\" title=\"Sony TA-E1 Preamplifier Owner's Manual on SkyFi Audio\" target=\"_blank\"\u003eSony TA-E1 Preamplifier Owner's Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" title=\"Kimber Kable - Silver Streak Summit Series RCA Interconnects - SkyFi Audio\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-balanced-xlr-connectors-new-summit-series\" title=\"Kimber Kable - Silver Streak Summit Series XLR Interconnects - SkyFi Audio\" target=\"_blank\"\u003eKimber Kable - XLR Interconnects\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - MONOCLE XL Summit Series Speaker Cables - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-bifocal-xl-speaker-cables-bi-wire-pair-new\" title=\"Kimber Kable - BiFocal XL Summit Series Bi-Wire Speaker Cables - SkyFi Audio\" target=\"_blank\"\u003eKimber Kable - Bi-Wire Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - PK14 Palladian Summit Series 14AWG Power Cord - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-palladian-power-cord-brand-new\" target=\"_blank\"\u003e\u003cspan\u003eKimber Kable - 14AWG (Gauge) Power Cords\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk10-pk-10-palladian-power-cord-brand-new\" title=\"Kimber Kable - PK10 Palladian Summit Series 10AWG Power Cord - SkyFi Audio\" target=\"_blank\"\u003eKimber Kable - 10AWG (Gauge) Power Cords\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eMore from The Vintage Knob:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSony TA-N1 Amplifier\u003c\/strong\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003ePart of the fairly rare \"\u003c\/span\u003e\u003cspan class=\"alt_color_2_b\"\u003e1\u003c\/span\u003e\u003cspan\u003e\" series, expressly designed for Sony's SACD launch, along with the \u003c\/span\u003e\u003ca title=\"Sony SCD-1\" href=\"http:\/\/www.thevintageknob.org\/sony-SCD-1.html\"\u003eSCD-1\u003c\/a\u003e\u003cspan\u003e reference player, \u003c\/span\u003e\u003ca title=\"Sony TA-E1\" href=\"http:\/\/www.thevintageknob.org\/sony-TA-E1.html\"\u003eTA-E1\u003c\/a\u003e\u003cspan\u003e preamplifier and \u003c\/span\u003e\u003ca title=\"Sony SS-M9ED\" href=\"http:\/\/www.thevintageknob.org\/sony-SS-M9ED.html\"\u003eSS-M9ED\u003c\/a\u003e\u003cspan\u003e loudspeakers.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis bombastic mammoth of \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e70\u003cabbr title=\"kilogram\"\u003ekg (155 lbs.)\u003c\/abbr\u003e\u003c\/span\u003e\u003cspan\u003e holds 10 pairs of non-magnetic \u0026amp; gold-plated Sony MOS-FETs (\u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e2SJ120A\u003c\/span\u003e\u003cspan\u003e \u0026amp; \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e2SK1530A\u003c\/span\u003e\u003cspan\u003e), \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003eMetal Core Modules\u003c\/span\u003e\u003cspan\u003e, a non-magnetic chassis made of \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e15\u003cabbr title=\"millimeter\"\u003emm\u003c\/abbr\u003e\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e10\u003cabbr title=\"millimeter\"\u003emm\u003c\/abbr\u003e\u003c\/span\u003e\u003cspan\u003e aluminum slabs and copper plates, specially designed 4N aluminum foil electrolytic capacitors, a \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e1,5kVA Torus\u003c\/span\u003e\u003cspan\u003e toroidal transformer housed in a \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003eceramic\u003c\/span\u003e\u003cspan\u003e compound, 30A rectification diodes and a fully balanced circuit and set of input plugs. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEach diecast heatsink block weighs \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e16\u003cabbr title=\"kilogram\"\u003ekg (35 lbs.)\u003c\/abbr\u003e\u003c\/span\u003e\u003cspan\u003e!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe final stage is, unlike the previous \u003c\/span\u003e\u003ca title=\"Sony TA-NR1\" href=\"http:\/\/www.thevintageknob.org\/sony-TA-NR1.html\"\u003eTA-NR1\u003c\/a\u003e \u003cspan\u003eand its \u003c\/span\u003e\u003ca title=\"Sony TA-NR10\" href=\"http:\/\/www.thevintageknob.org\/sony-TA-NR10.html\"\u003eTA-NR10\u003c\/a\u003e\u003cspan\u003e updated version, setup in Class AB for a better efficiency and (much) less heat problems.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan class=\"alt_color_2\"\u003eMetal Core Modules\u003c\/span\u003e\u003cspan\u003e are made of an aluminium alloy circuit-board on which circuit patterns are formed with copper and parts are surface-mounted - better conductivity, better heat regulation, minimal track lengths.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eTo stand the bandwidth required by SACD sources, the \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003eLinear Phase Circuit\u003c\/span\u003e\u003cspan\u003e was designed.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe production is supposed to have been halted after the first 100 pieces but there should be a bit more than that around the neighborood - rich neighborhoods.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSony TA-E1 Preamplifier\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003ePart of Sony's last series of High-End units, specifically designed for the SACD format and the \u003c\/span\u003e\u003ca href=\"http:\/\/www.thevintageknob.org\/sony-SCD-1.html\" title=\"Sony SCD-1\"\u003eSCD-1\u003c\/a\u003e\u003cspan\u003e flagship - all with outer-space bandwidth requirements.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eAs for the xxx-rare R10 units, no expense was spared for the \"1\" mini series. High-bandwidth oblige, the star of the show is the Phase Linear Amplifier, allowing phase to remain linear up to \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e100\u003cabbr title=\"Kilohertz\"\u003eKhz\u003c\/abbr\u003e\u003c\/span\u003e\u003cspan\u003e, with only 5\u003c\/span\u003e\u003cabbr title=\"decibel\"\u003edB\u003c\/abbr\u003e\u003cspan\u003e attenuation around the \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e100MHz\u003c\/span\u003e\u003cspan\u003e region !\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe chassis of the TA-E1 is a sandwich of 1\u003c\/span\u003e\u003cabbr title=\"centimeter\"\u003ecm \u003c\/abbr\u003e\u003cspan\u003ealuminum and 2 x 2\u003c\/span\u003e\u003cabbr title=\"millimeter\"\u003emm\u003c\/abbr\u003e\u003cspan\u003e copper plates; the top plate is \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e7\u003cabbr title=\"millimeter\"\u003emm\u003c\/abbr\u003e\u003c\/span\u003e\u003cspan\u003e thick, enlarged to \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e10\u003cabbr title=\"millimeter\"\u003emm\u003c\/abbr\u003e\u003c\/span\u003e\u003cspan\u003e for the front and back parts.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003ePower supply and rectification are set in a separate enclosure, very much like the \u003c\/span\u003e\u003ca href=\"http:\/\/www.thevintageknob.org\/sony-pre-Esprit.html\" title=\"Sony pre-Esprit\"\u003epre-Esprit\u003c\/a\u003e\u003cspan\u003e preamplifiers :)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe resistive plastic ALPS attenuator has a 5\u003c\/span\u003e\u003cabbr title=\"centimeter\"\u003ecm\u003c\/abbr\u003e\u003cspan\u003e diameter and allows channel balance error of only \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e0.5\u003cabbr title=\"decibel\"\u003edB\u003c\/abbr\u003e\u003c\/span\u003e\u003cspan\u003e between 0\u003c\/span\u003e\u003cabbr title=\"decibel\"\u003edB\u003c\/abbr\u003e\u003cspan\u003e and -100\u003c\/span\u003e\u003cabbr title=\"decibel\"\u003edB\u003c\/abbr\u003e\u003cspan\u003e; depth is of 9.5\u003c\/span\u003e\u003cabbr title=\"centimeter\"\u003ecm\u003c\/abbr\u003e\u003cspan\u003e while the structure of it is full oxygen-free copper made under hot casting conditions. Ultra-low resistance plastic is used.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe power transformer is \"\u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003eamorphic\u003c\/span\u003e\u003cspan\u003e\" and toroidal with ultra-magnetic materials (\u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003enickel, cobalt, and iron\u003c\/span\u003e\u003cspan\u003e) used for the metal core and precise winding arrangement; it is housed in a ceramic box for optimal damping and avoidance of any possible flux leaks.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe four die-cast \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003eMetal Core Modules\u003c\/span\u003e\u003cspan\u003e hold the input\/output stages PCBs and are used as heatsinks as well (decoupling the boards from the chassis along the way) and as components are surface mounted, shortening signals paths as well.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eThe rest of the parts is on par with all the above, and so was the pricetag.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eHow many E1's were produced is a mystery: it is even said that only the initial production was completed - that would make \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e100\u003c\/span\u003e\u003cspan\u003e. However, the highest serial spotted outside Japan was #\u003c\/span\u003e\u003cspan class=\"alt_color_1\"\u003e500 104\u003c\/span\u003e\u003cspan\u003e and outside Japan a bit lower than that. So probably around \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e200\u003c\/span\u003e\u003cspan\u003e made - few at any rate.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBut then, as a \u003c\/span\u003e\u003ci\u003eprospective replacement\u003c\/i\u003e\u003cspan\u003e to \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003eCD\u003c\/span\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003eSACD\u003c\/span\u003e\u003cspan\u003e wasn't that successful either...\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSony in \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003e2004\u003c\/span\u003e\u003cspan\u003e sort of launched a Japan-only and even more reduced set of high-end separates (SCD-DR1, TA-DR1 and TA-DR1a) with this time really undefendable design à la melted ice cream.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cspan class=\"alt_color_2\"\u003eDR1\u003c\/span\u003e\u003cspan\u003e set ended Sony's adventure in high-end audio (bar the SS-AR1 loudspeaker all-time masterpiece).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eBut you can still read the enthusiastic \u003c\/span\u003e\u003cspan class=\"alt_color_3_b\"\u003eapril 1999\u003c\/span\u003e\u003cspan\u003e Sony press announcement \u003c\/span\u003e\u003ca href=\"http:\/\/www.sony.net\/SonyInfo\/News\/Press_Archive\/199904\/99-003\/index.html\" class=\"lien_ext\" title=\"Open in a new window\"\u003eonline\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe SkyFi Testing Process for Solid State Preamplifiers:\u003c\/strong\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCB’s for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eWhen we first power on a preamplifier we connect its RCA output to a Sencore PA81 Power Analyzer which simulates real world loading conditions and gives us an oscilloscope interface. The first order of business is checking that the volume control works smoothly throughout its entire range with acceptable channel balance. This is accomplished by feeding a 1KHz sine wave into one of the preamp’s line level inputs while monitoring the preamp’s output on an oscilloscope. We then switch to a 1KHz square wave to test the tone controls, loudness function, and filters where applicable. During this step we are watching for equal alteration of the test signal by both channels. This also helps us identify dirty controls that will need treatment. Once the basic line stage functions are verified, we test each input individually. This is especially important for devices that use relays to select their sources. If the preamp is equipped with a phono stage we test that as well. We use an inverse RIAA filter which allows us to feed a reference test signal into the phono input with the proper RIAA equalization and level. A square wave or sine sweep is used to verify that the device’s phono stage is faithfully reproducing the RIAA curve. If the preamp under test has balanced inputs and\/or outputs these are tested as well.\u003c\/p\u003e\n\u003cp\u003eWe finish up our bench testing with a listening test with our bench amplifier and reference speakers. During this test we check for hum or hiss that may not have shown up in earlier testing. We also check that all of the tone controls and filters perform as expected. If the preamplifier has remote control functions these are also tested. Preamps with tube circuits or complicated power supply topologies are connected at our long term test rig for extended stress testing under real world conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe SkyFi Testing Process for Solid State Amplifiers:\u003cbr\u003e\u003c\/strong\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1KHz test signal at the amplifier’s input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eItem\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eIncluded\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eOriginal Box\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003eNo - Not Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eManual\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003eNo - Online Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eRemote\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003eNo - Preamp does not have remote control capability\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCables\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003eYes - Power Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003ePhysical Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003e7 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eWorking Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e10 \/ 10\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ciframe width=\"1280\" height=\"720\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE?\u0026amp;autoplay=1\u0026amp;mute=1\" title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Sony","offers":[{"title":"Default Title","offer_id":38081572700360,"sku":"102177","price":25490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/sony-es-ta-n1-amplifier-and-e1-preamplifier-set-the-best-ever-made-w-free-shipping-297.jpg?v=1774461664"},{"product_id":"mcintosh-a-129-mono-tube-amplifier-super-rare-all-original-unrestored","title":"McIntosh A-129 Mono Tube Amplifier - Super Rare - All Original and Unrestored","description":"\u003cp\u003eThe McIntosh A-129 appears to be a modified version of the MC75 for commercial use. The silk screen on the chrome reads: \"Square D Specification #30522-503-50\" \u003cbr\u003e \u003cbr\u003eThis amplifier is unique in that both the power and speaker output connections are located on the external barrier strip. The normal convenience outlet, octal socket, and power cord are absent.\u003c\/p\u003e\n\u003cp\u003eThe output transformer is identified as: McIntosh Transformer Type 043-343. It looks like only one speaker tap is present on the transformer, and we are not sure of its exact output impedance. \u003cbr\u003e \u003cbr\u003eThe amp was brought up (powered on) very slowly on a variac and does show signs of life. Plate voltage and negative bias voltage are both present and it does pass an audio signal, though it is very distorted. \u003cbr\u003e \u003cbr\u003eWe have opted to leave this super rare and unique piece in its original \"as found\" condition for the time being. But are open to restoring it to working condition for a separate fee if desired. Please give us a ring to discuss (201-879-0000 x101).\u003cbr\u003e \u003cbr\u003eThe original set of tubes that were found with this unit include a nicely testing Telefunken 12AU7, RCA 12AX7's and a single RCA 12BH7, and a pair of original Genalex Gold Lion KT88. All tubes tested on the weak side with the exception of the Telefunken 12AU7.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClick below to add our recommended matching cables from Kimber Kable, all brand new as SkyFi is an official Kimber dealer.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - Silver Streak Summit Series RCA Interconnects - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-monocle-xl-speaker-cables-pair-new\" title=\"Kimber Kable - MONOCLE XL Summit Series Speaker Cables - SkyFi Audio\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - BiFocal XL Summit Series Bi-Wire Speaker Cables - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-bifocal-xl-speaker-cables-bi-wire-pair-new\" target=\"_blank\"\u003eKimber Kable - Bi-Wire Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eItem\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eIncluded\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eOriginal Box\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eNot Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eManual\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eNot Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eRemote\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eNot Applicable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCables\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eYes - Power Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003ePhysical Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e6 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eWorking Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e10 \/ 10\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ciframe title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE\" height=\"720\" width=\"1280\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":42067291275518,"sku":"101630","price":9990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-a-129-mono-tube-amplifier-super-rare-all-original-and-unrestored-956.jpg?v=1770235390"},{"product_id":"conrad-johnson-mv52-tube-amplifier-factory-upgraded-mv50","title":"Conrad Johnson MV52 Tube Amplifier - Factory Upgraded","description":"\u003cp\u003eThe MV50 is one of our most beloved and versatile tube amplifiers from CJ. The MV52 takes it to the next leveI. \u003cbr\u003e \u003cbr\u003eOur in-house tube expert went through this amplifier carefully to ensure it meets full and original factory performance. \u003cbr\u003e \u003cbr\u003ePLUS this example was factory upgraded from an MV50 to MV52 in August 1993.\u003cbr\u003e \u003cbr\u003e\u003cstrong\u003eTube Notes:\u003c\/strong\u003e \u003cbr\u003e(4) Matched Quad New Svetlana EL34 \u003cbr\u003e(2) Philips ECG 6CG7 \u003cbr\u003e(2) GR 5751\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCosmetic Notes:\u003c\/strong\u003e \u003cbr data-mce-fragment=\"1\"\u003e• Right channel terminal block has some slight damage \u003cbr data-mce-fragment=\"1\"\u003e• Left handle slightly bent but barely noticeable. \u003cbr\u003e \u003cbr\u003e\u003cstrong\u003eLink to manual\u003c\/strong\u003e \u003cbr\u003ehttps:\/\/conradjohnson.com\/owners-manuals\/mv52man.pdf\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClick below to add our recommended matching cables from Kimber Kable, all brand new as SkyFi is an official Kimber dealer.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - Hero Ascent Series RCA Interconnects - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - 8TC Ascent Series Speaker Cables - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e\u003cbr\u003e \u003cbr\u003e\u003cstrong\u003eGreat bit of info from CJ:\u003c\/strong\u003e\u003cbr\u003eCIRCUIT DESIGN \u003cbr\u003eIt has been our experience that simple designs with few active stages when executed with care and great attention to detail will be both more musical and more reliable than overcomplicated alternatives.\u003c\/p\u003e\n\u003cp\u003eAccordingly, the audio circuit of the MV52 is remarkably straightforward.\u003c\/p\u003e\n\u003cp\u003eA triode input amplifier comprised of paralleled sections of a 5751 is direct \u003cbr\u003ecoupled to a cathode coupled differential phase inverter using high current triodes to provide balanced, low impedance drive to the pushpull output stage.\u003c\/p\u003e\n\u003cp\u003eThe output stage features ultralinear operation which permits high power levels while greatly reducing the source impedance of the stage.\u003c\/p\u003e\n\u003cp\u003eAs a result, the amplifier is capable of supplying the large current demands of high amplitude musical transients driven into reactive speaker loads.\u003c\/p\u003e\n\u003cp\u003eA substantial main power supply of massive polypropylene capacitors enables the MV52 to easily meet these extraordinary current demands.\u003c\/p\u003e\n\u003cp\u003eVoltage regulators for the voltage amplifiers and phase inverters provide nearly absolute isolation of these sensitive stages from the output stages. \u003cbr\u003e \u003cbr\u003e\u003cstrong\u003eSPECIFICATIONS:\u003c\/strong\u003e \u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003ePower:\u003c\/span\u003e 45 watts per channel RMS both channels driven into 8 ohms from 30Hz to 15KHz at no more than 1% total harmonic distortion or intermodulation distortion. \u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eSensitivity:\u003c\/span\u003e 750 mv to full power. \u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eSmall Signal Distortion:\u003c\/span\u003e Less than .1% at midband \u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003ePhase:\u003c\/span\u003e Phase correct (non-inverting) \u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFrequency response:\u003c\/span\u003e 20Hz to 20KHz +0, -.5dB \u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eHum and noise:\u003c\/span\u003e 90dB below full power output. \u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eInput impedance:\u003c\/span\u003e 100K ohms. \u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDimensions:\u003c\/span\u003e 11.5D x 19W x 9H inches. \u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eWeight:\u003c\/span\u003e 39 lbs.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eThe SkyFi Testing Process for Tube Amplifiers:\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eWe start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and tubes are inspected for signs of stress overheating or cracking.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWe then power up the unit carefully and run a simple 1k sine wave while monitoring the output on an oscilloscope for signs of distortion or noise. Finally we run the amplifier to its full rated power into the appropriate resistive load provided by our Sencore amplifier tester. If there is an issue, it will usually be noticeable at this point. If it all looks clean we will often test for THD (Total Harmonic Distortion) measured by our Keithley distortion meter, and compare it against the original manufacturers specifications. The amplifier the remains powered on to \"burn in\" on our test bench for a few hours to make sure there are no heat related issues. If there are balanced inputs available they will also be tested.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eWe also test all tubes for output gain and leakage on our modern and professional tester against the original manufacturers specifications. If needed, the tubes will be replaced from our vast NOS (New Old Stock) vintage or modern inventory.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFinal testing involves pushing actual music thorough the amplifier. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage KEF speakers that we're very familiar with which quickly reveal any discrepancies. Some amplifiers will then move into our listening room where they are tested with our in-house reference speakers of choice.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eItem\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eIncluded\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eOriginal Box\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eNot Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eManual\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eOnline Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eRemote\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eNot Applicable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCables\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eYes - Power\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003ePhysical Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e7\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eWorking Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e10\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Conrad Johnson","offers":[{"title":"Default Title","offer_id":42468085203198,"sku":"102631","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/conrad-johnson-mv52-tube-amplifier-factory-upgraded-583.jpg?v=1770314112"},{"product_id":"mcintosh-mc7106-6-six-channel-solid-state-amplifier-w-led-vu-meters-lucasfilm-thx-rated","title":"McIntosh MC7106, 6 Channel Solid State Amp w\/LED VU Meters, Lucasfilm THX Rated","description":"\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuper flexible and powerful Lucasfilm THX rated theater amplifier from McIntosh.\u003c\/p\u003e\n\u003cp\u003e6 x 100 Watt amplifier channels in a single chassis!\u003c\/p\u003e\n\u003cp\u003e*Note that a current McIntosh home theater amp will set you back over $7k\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYou can configure this beast in the following configurations:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 3 x 300W for 3 channels total\u003c\/p\u003e\n\u003cp\u003e• 4 x 100W and 1 x 300W for 3 channels total\u003c\/p\u003e\n\u003cp\u003e• 6 x 100W for 6 channels total\u003c\/p\u003e\n\u003cp\u003e• 2 x 100 \u003cem\u003eAND\u003c\/em\u003e 2 x 300 for 4 channels total)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThe 6 x LED VU meters\u003c\/span\u003e, not activated in the pictures, are simply gorgeous and very useful. There is also an adjustable display brightness control as shown on the back panel photo in this listing. \u003cbr\u003e\u003cbr\u003eThis unit, like almost all other McIntosh units, uses a front glass face plate which provides an attractive and very durable finish. The lettering will never show wear. \u003cbr\u003e\u003cbr\u003eThis particular sample is in super clean condition without any noticiable scratches or blemishes. It has been fully tested in our lab to manufacturer specifications. \u003cbr\u003e\u003cbr\u003eIt comes in its original McIntosh box and includes an original copy of the owner's manual and a power cord.   \u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClick below to add our recommended matching cables from Kimber Kable, all brand new as SkyFi is an official Kimber dealer.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" title=\"Ascent Series Hero Analog Interconnects (PAIR) - RCA Ultraplate or WBT Connectors\" target=\"_blank\"\u003eAscent Series Hero Analog Interconnects (PAIR) - RCA Ultraplate or WBT Connectors\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Ascent Series Hero Analog Interconnects (PAIR) - BALANCED XLR Connectors\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" target=\"_blank\"\u003eAscent Series Hero Analog Interconnects (PAIR) - BALANCED XLR Connectors\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - MONOCLE XL Summit Series Speaker Cables - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-bifocal-xl-speaker-cables-bi-wire-pair-new\" title=\"Kimber Kable - BiFocal XL Summit Series Bi-Wire Speaker Cables - SkyFi Audio\" target=\"_blank\"\u003eKimber Kable - Bi-Wire Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePERFORMANCE LIMITS\u003cbr\u003ePerformance limits are the maximum deviation from perfection permitted for a Mclntosh instrument. We promise you that when you purchase an MC7106 from a Mclntosh franchised dealer, it will be capable of performance at or better than these limits.\u003cbr\u003e\u003cbr\u003ePOWER OUTPUT, SIX CHANNELS\u003cbr\u003e100 watts per channel into 8 ohm loads, or 160 watts per channel into 4 ohm loads minimum sine wave continuous average power output per channel, all channels operating.\u003cbr\u003e\u003cbr\u003eThe output RMS voltage is:\u003cbr\u003e28.3V across 8 ohms\u003cbr\u003e25.2V across 4 ohms\u003cbr\u003e\u003cbr\u003ePOWER OUTPUT, TWO CHANNELS BRIDGED\u003cbr\u003e320 watts into an 8 ohm load, minimum sine wave continuous average power output.\u003cbr\u003e\u003cbr\u003eThe output RMS voltage is:\u003cbr\u003e50.6V across 8 ohms\u003cbr\u003e\u003cbr\u003eOUTPUT LOAD IMPEDANCE\u003cbr\u003e8 or 4 ohms, for all six separate channels\u003cbr\u003e8 ohms, Bridged operation\u003cbr\u003e\u003cbr\u003eRATED POWER BAND\u003cbr\u003e20Hz to 20,000Hz\u003cbr\u003e\u003cbr\u003eTOTAL HARMONIC DISTORTION\u003cbr\u003e0.005% maximum harmonic distortion at any power level from 250 mW to rated power output.\u003cbr\u003e\u003cbr\u003eIHF DYNAMIC HEADROOM\u003cbr\u003e8 ohms, 1.8dB\u003cbr\u003e4 ohms, 2.1dB\u003cbr\u003e\u003cbr\u003eFREQUENCY RESPONSE\u003cbr\u003e+ 0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+ 0, -3.0dB from 10Hz to 100,000Hz\u003cbr\u003e\u003cbr\u003eINPUT SENSITIVITY\u003cbr\u003e1V, (2.5V with Level control at center detent)\u003cbr\u003e\u003cbr\u003eA-WEIGHTED SIGNAL-TO-NOISE RATIO\u003cbr\u003e93dB (113dB below rated output)\u003cbr\u003e\u003cbr\u003eINTERMODULATION DISTORTION, SMPTE\u003cbr\u003e0.005% maximum if instantaneous peak power does not exceed twice the output power rating.\u003cbr\u003e\u003cbr\u003eRATINGS\u003cbr\u003eWIDE BAND DAMPING FACTOR\u003cbr\u003e200 at 8 ohms\u003cbr\u003e100 at 4 ohms\u003cbr\u003e\u003cbr\u003eINPUT IMPEDANCE\u003cbr\u003e20,000 ohms\u003cbr\u003e\u003cbr\u003ePOWER GUARD\u003cbr\u003eClipping is prevented and THD does not exceed 2% with up to 14dB overdrive at 1000Hz.\u003cbr\u003e\u003cbr\u003ePOWER REQUIREMENTS\u003cbr\u003e120V, 50\/60Hz, 12A UL\/CSA\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eFRONT PANEL:\u003c\/strong\u003e Glass panel. Illuminated. Power Guard lights. Power LED's indicate when each channel pair is active.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBACK PANEL:\u003c\/strong\u003e Output terminals. Audio inputs and outputs. Power control jacks: in and out. Power sw: on or off\/remote. THX 25 pin input connector. Level controls: bridged and stereo\/mono. Mode sw: bridged, stereo or mono. Multi-room connector. Fuse.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSize\u003c\/strong\u003e 7-1\/16\"H, 17-1\/2\"W and 20\"D. \u003cstrong\u003eWeight\u003c\/strong\u003e 48 lb.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/brochure_mc7106.pdf?v=1662749238\" title=\"Click here for a PDF copy of the Original MC7106 Sales Brochure on SkyFi Audio\" target=\"_blank\"\u003eClick here for a PDF copy of the Original MC7106 Sales Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/owners_manual_MC7106.pdf?v=1662749236\" title=\"Click here for a PDF copy of the MC7106 Owner's Manual on SkyFi Audio\" target=\"_blank\"\u003eClick here for a PDF copy of the MC7106 Owner's Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-mcintosh-collection\" title=\"Click here to view all McIntosh pieces available for purchase on our website\" target=\"_blank\"\u003eClick here to view all McIntosh pieces available for purchase on our website\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe SkyFi Testing Process for Solid State Amplifiers:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1KHz test signal at the amplifier’s input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eItem\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eIncluded\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eOriginal Box\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003eYes Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eManual\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003eYes Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eRemote\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003eNot Applicable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eCables\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003eYes - Power Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003ePhysical Condition \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" title=\"SkyFi Audio Equipment Rating Scale\" target=\"_blank\"\u003e(Info Here)\u003c\/a\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e7 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eWorking Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e10 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE\" height=\"720\" width=\"1280\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43443722223870,"sku":"103661","price":3149.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc7106-6-channel-solid-state-amp-w-led-vu-meters-lucasfilm-thx-rated-amplifier-271.jpg?v=1740075113"},{"product_id":"mcintosh-mc3500-mc-3500-mki-legendary-vintage-tube-mono-monoblock-amplifiers-unmolested-call-for-restoration-options","title":"McIntosh MC3500 Legendary Vintage Tube Mono Amplifiers - Unmolested - Call For Restoration Options","description":"\u003cp\u003e\u003cstrong\u003ePlease \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/how-to-reach-us\" title=\"Contact SkyFi Audio\" target=\"_blank\"\u003ecall us\u003c\/a\u003e to discuss available restoration options and pricing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs equipment restorers our initial impulse is to cosmetically restore every piece of equipment that comes in. With this particular set due to the Woodstock notoriety, collectibility, and amazing patina, we decided to resist the temptation. \u003cbr\u003e\u003cbr\u003eThey are gorgeous as is, warts and all.\u003cbr\u003e\u003cbr\u003eThe legendary MC3500 amplifier has become even more popular since McIntosh released a reissue maintaining the same looks, aesthetics, and design characteristics. If you haven't seen the new model, be sure to google it as they are striking. \u003cbr\u003e\u003cbr\u003eMost readers already know that this model was made famous because it powered Woodstock. This specific pair was definitely not at that historic event as those were modified to have some of the connections relocated to the front panel for quick access. However this pair likely still has some stories to tell as they appear to have been well traveled. \u003cbr\u003e\u003cbr\u003eRight now both amplifiers are working, providing great sound and passing a signal with little hum or distortion. We have tested all the tubes and biased the unit to McIntosh factory spec.\u003cbr\u003e\u003cbr\u003eHowever, if they are going to be used routinely, they should be restored for both reliability and performance. \u003cbr\u003e\u003cbr\u003eSome collectors may choose to keep them as-is while others might want them restored, so we will leave it up the buyer. \u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003ePlease \u003ca data-mce-fragment=\"1\" href=\"https:\/\/skyfiaudio.com\/pages\/how-to-reach-us\" title=\"Contact SkyFi Audio\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/how-to-reach-us\"\u003ecall us\u003c\/a\u003e to discuss available restoration options and pricing.\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/SQDwPUhM1Es?si=f0K2J5FYdlUFcs9v\" height=\"315\" width=\"560\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/McIntosh-MC3500-MKI-Original-Sales-Brochure.pdf?v=1662750809\" title=\"McIntosh MC3500 Original Sales Brochure on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh MC3500 Original Sales Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/McIntosh-MC3500-MKI-Owners-Manual.pdf?v=1662750808\" title=\"McIntosh MC3500 Original Owner's Manual on SkyFi Audio\" target=\"_blank\"\u003e\u003cspan\u003eMcIntosh MC3500 Original Owner's Manual\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe SkyFi Testing Process for Tube Amplifiers:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use an Amplitrex AT-1000 Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. We document the results of each tube and replace any weak or suspect tubes before proceeding. When we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable. If everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged. Once we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation.\u003c\/p\u003e\n\u003cp\u003eWe start by feeding the input of the amplifier with a low level 1KHz test signal, slowly increase its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. For tube amps we like to run this test at least twice. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-select-series-ks1016-copper-rca-analog-interconnects-pair-wbt-connectors-new\" title=\"Select Series KS1016 Copper RCA Analog Interconnects (Pair) - WBT Connectors\" target=\"_blank\"\u003eSelect Series KS1016 Copper RCA Analog Interconnects (Pair) - WBT Connectors\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" title=\"Summit Series Monocle XL Speaker Cables (PAIR)\" target=\"_blank\"\u003eSummit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" target=\"_blank\"\u003eSummit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new?_pos=2\u0026amp;_sid=36f592809\u0026amp;_ss=r\u0026amp;variant=33307047198806\" title=\"Ascent Series PK10 Power Cord\" target=\"_blank\"\u003eAscent Series PK10 Power Cord\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003ciframe title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE?\u0026amp;autoplay=1\u0026amp;mute=1\" height=\"720\" width=\"1280\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43447491854590,"sku":"102605","price":29900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc3500-legendary-vintage-tube-mono-amplifiers-unmolested-call-for-restoration-options-amplifier-233.jpg?v=1770311238"},{"product_id":"veloce-audio-lithio-series-saetta-hybrid-tube-monoblock-amplifiers-rare","title":"Veloce Audio - Lithio Series Saetta Hybrid Tube Monoblock Amplifiers - Rare","description":"\u003cp\u003eSuper rare hybrid amplifiers from Veloce Audio, made right here in the USA. \u003c\/p\u003e\n\u003cp\u003eIn like new condition, possibly NOS \/ New Old Stock, as there isn't a single sign of any use.\u003c\/p\u003e\n\u003cp\u003e$19,000 MSRP.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"1114\" height=\"627\" src=\"https:\/\/www.youtube.com\/embed\/aqPo_tVtIW8?\u0026amp;autoplay=1\u0026amp;mute=1%0A\" title=\"Veloce Saetta Mono Blocks - Tubes and Batteries Making Magic -  Quick Look\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eOne of the most striking designs we've simply ever seen, utilizing an outboard SmartSupply charging unit along with the highest quality components available. \u003cbr\u003e\u003cbr\u003eThese are Hybrid mono amps meaning they use Lithio pure DC power supplies inside of each amplifier (see photos). The SmartSupply for charging is included with the amps with its 2 umbilical cords.\u003c\/p\u003e\n\u003cp\u003eThese unique amps employ a Class A tube driver stage using (2) 6H30 tubes for perfect transfer of dynamic harmonic information.\u003c\/p\u003e\n\u003cp\u003eThis stage is transformer coupled to a bridged solid state output stage for maximum power (400W) and lowest power consumption.\u003c\/p\u003e\n\u003cp\u003eYour purchase includes the original boxes with all original packaging materials, manuals, power cords, and power umbilical connecting cords. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" title=\"Ascent Series Hero Analog Interconnects (PAIR) - BALANCED XLR Connectors\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-silver-streak-analog-interconnects-pair-balanced-xlr-connectors-new\" title=\"Summit Series Silver Streak Analog Interconnects (PAIR) - BALANCED XLR Connectors\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-silver-streak-analog-interconnects-pair-balanced-xlr-connectors-new\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" title=\"Kimber Kable - 8TC Ascent Series Speaker Cables - SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" title=\"Summit Series Monocle XL Speaker Cables (PAIR)\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" title=\"Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" title=\"Kimber Kable - PK14 Ascent Series Power Cords - SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca data-mce-fragment=\"1\" title=\"Kimber Kable - PK10 Ascent Series Power Cords - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAmplifier Inputs:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e1 Balanced XLR Connection\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLoudspeaker Connection:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e1 Pair German-Made WBT Binding Posts\u003cbr data-mce-fragment=\"1\"\u003e(Accepts Spades \/ Pins \/ Bare Wire)\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTube Compliment:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e2 x 6H30 tubes\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003ePower Rating:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e320 Watts \/ 8 Ohms\u003cbr data-mce-fragment=\"1\"\u003e400 Watts \/ 4 Ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eGain:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e24 dB\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eEfficiency:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e92% at full power\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eInput Impedance:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e100 kohm\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTHD + N:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u0026lt;0.03%\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFrequency Response:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e+0 \/ -2dB from 5 Hz to 45 kHz\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eResidual Noise:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u0026lt; -90 dB\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003ePower Input:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e110\/117 or 220\/234 Volts AC @ 50-60 Hz\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCharger Stage Output:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e42 Volts\/ 4.5 Amps\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eLithium Hybrid Clean Power Supply:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e+ \/ - 40 Volts\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFinish:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eAluminum - Black Anodized \u0026amp; Chrome\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eWeight:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e32 lbs each \/ 75 lbs Complete System\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDimensions:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e4.5\" H x 14\" W x 18\" D each\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eThe SkyFi Testing Process for Tube Amplifiers:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use an Amplitrex AT-1000 Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. We document the results of each tube and replace any weak or suspect tubes before proceeding. When we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable. If everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged. Once we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe start by feeding the input of the amplifier with a low level 1KHz test signal, slowly increase its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. For tube amps we like to run this test at least twice. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e\n\u003ctable data-mce-fragment=\"1\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb data-mce-fragment=\"1\"\u003eItem\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\" align=\"center\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb data-mce-fragment=\"1\"\u003eIncluded\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb data-mce-fragment=\"1\"\u003eOriginal Boxes\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\" align=\"center\"\u003eYes Included\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb data-mce-fragment=\"1\"\u003eManual\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\" align=\"center\"\u003eYes Included\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb data-mce-fragment=\"1\"\u003eRemote\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\" align=\"center\"\u003eNot Applicable\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCables\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\" align=\"center\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003eYes Power \u0026amp; Umbilicals\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb data-mce-fragment=\"1\"\u003ePhysical Condition\u003cspan\u003e \u003c\/span\u003e\u003ca title=\"SkyFi Audio Equipment Rating Scale\" href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003e(Info Here)\u003c\/a\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\" align=\"center\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e9 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb data-mce-fragment=\"1\"\u003eWorking Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" valign=\"top\"\u003e\n\u003cp data-mce-fragment=\"1\" align=\"center\"\u003e10 \/ 10\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ci\u003e\u003ciframe title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE\" height=\"720\" width=\"1280\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/i\u003e\u003c\/p\u003e","brand":"Veloce Audio","offers":[{"title":"Default Title","offer_id":43653589958910,"sku":"100412","price":7790.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/veloce-audio-lithio-series-saetta-hybrid-tube-monoblock-amplifiers-rare-amplifier-141.jpg?v=1725046932"},{"product_id":"tandberb-3016-amplifier-flagship-amp-with-220w-uber-rare","title":"Tandberg 3016 Amplifier - Flagship Amp with 220W - Uber Rare","description":"\u003cp\u003e\u003cb\u003eGeneral\u003c\/b\u003e:\u003c\/p\u003e\n\u003cp\u003eHands down the best, rarest, and most desirable amplifier from Tandberg.\u003c\/p\u003e\n\u003cp\u003eThe 3016 is rated at 220W and is constructed beautifully, like you'd expect from a Tandberg 3000 series component but taken to the extreme. \u003cbr\u003e \u003cbr\u003eThis piece is from my private collection which took me decades to source, especially this clean. \u003cbr\u003e \u003cbr\u003eComing up soon will be the matching 3018 preamp which makes this a \"one two\" punch. \u003cbr\u003e \u003cbr\u003eIn great cosmetic condition as you'd expect from a collector. Tested in our lab and working brilliantly. \u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSecond Owner \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e7 - Some Wear and Light Scratches\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\"\u003ehttps:\/\/skyfiaudio.com\/pages\/our-rating-scale\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWorking perfectly and tested in our lab and listening room. \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eJust the unit and power cord\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWill be packed using our highly developed in-house process and custom packing materials.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE?\u0026amp;autoplay=1\u0026amp;mute=1\" height=\"383\" width=\"680\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReviews:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrom hifi-classic.net:\u003c\/strong\u003e\u003cbr\u003eTandberg’s power amplifier, the 3016A, is a no-holds-barred design aimed at the demanding (and affluent) audiophile. Its unconventional circuitry and choice of internal components strongly suggest a perfectionist attitude on the part of its designers.\u003c\/p\u003e\n\u003cp\u003eThe 3016A is a large, heavy, and powerful amplifier. It is rated to deliver 220 watts per channel into 8-ohm loads from 20 to 20,000 Hz with no more than 0.05 percent total harmonic or intermodulation distortion. It is also rated for 400 watts per channel into 4 ohms. Its rated A-weighted noise level is — 94 dB referred to 1 watt (into 8 ohms), and its rated frequency response is + 0, -0.1 dB from 20 to 20,000 Hz and down only 0.2 dB at 1.5 MHz.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003c\/b\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca title=\"Kimber Kable - Hero Ascent Series RCA Interconnects - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" data-mce-fragment=\"1\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" title=\"Kimber Kable - Silver Streak Summit Series RCA Interconnects - SkyFi Audio\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" title=\"Kimber Kable - 8TC Ascent Series Speaker Cables - SkyFi Audio\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" title=\"Summit Series Monocle XL Speaker Cables (PAIR)\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca title=\"Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" title=\"Kimber Kable - PK14 Ascent Series Power Cords - SkyFi Audio\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1KHz test signal at the amplifier’s input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003c\/p\u003e","brand":"Tandberg","offers":[{"title":"Default Title","offer_id":43819537400062,"sku":"101098","price":6990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/tandberg-3016-amplifier-flagship-amp-with-220w-uber-rare-709.jpg?v=1770311041"},{"product_id":"mcintosh-mc7106-6-channel-solid-state-amp-w-led-vu-meters-thx-rated","title":"McIntosh MC7106, 6 Channel Solid State Amp w\/LED VU Meters, THX Rated","description":"\u003cp\u003eSuper flexible and powerful Lucasfilm THX rated theater amplifier from McIntosh. \u003cbr\u003e6 x 100 Watt amplifier channels in a single chassis!\u003c\/p\u003e\n\u003cp\u003e*Note that a current McIntosh home theater amp will set you back over $7k \u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYou can configure this beast in the following configurations:\u003c\/strong\u003e\u003cbr\u003e• 3 x 300W for 3 channels total\u003cbr\u003e• 4 x 100W and 1 x 300W for 3 channels total\u003cbr\u003e• 6 x 100W for 6 channels total\u003cbr\u003e• 2 x 100 *AND* 2 x 300 for 4 channels total)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cbr\u003eThe 6 x LED VU meters, not activated in the pictures, are simply gorgeous and very useful. There is also an adjustable display brightness control as shown on the back panel photo in this listing.  \u003cbr\u003e\u003cbr\u003eThis unit, like almost all other McIntosh units, uses a front glass face plate which provides an attractive and very durable finish. The lettering will never show wear.  \u003cbr\u003e\u003cbr\u003eThis particular sample is in super clean condition without any noticiable scratches or blemishes. It has been fully tested in our lab to manufacturer specifications.  \u003cbr\u003e\u003cbr\u003eIt comes in its original McIntosh box and includes an original copy of the owner's manual and a power cord.    \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCosmetic Notes:\u003c\/strong\u003e \u003cbr\u003e• Some of the red binding posts have cracks in the plastic from age that do not affect functionality.\u003cbr\u003e• Light cosmetic blemishes including a black vertical mark in the channel four meter \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThis MC7106 will ship in an authentic McIntosh double box for safe transport. \u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eClick below to add our recommended matching cables from Kimber Kable, all brand new as SkyFi is an official Kimber dealer.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Ascent Series Hero Analog Interconnects (PAIR) - RCA Ultraplate or WBT Connectors\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" target=\"_blank\"\u003eAscent Series Hero Analog Interconnects (PAIR) - RCA Ultraplate or WBT Connectors\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" title=\"Ascent Series Hero Analog Interconnects (PAIR) - BALANCED XLR Connectors\" target=\"_blank\"\u003eAscent Series Hero Analog Interconnects (PAIR) - BALANCED XLR Connectors\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-monocle-xl-speaker-cables-pair-new\" title=\"Kimber Kable - MONOCLE XL Summit Series Speaker Cables - SkyFi Audio\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - BiFocal XL Summit Series Bi-Wire Speaker Cables - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-bifocal-xl-speaker-cables-bi-wire-pair-new\" target=\"_blank\"\u003eKimber Kable - Bi-Wire Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePERFORMANCE LIMITS\u003cbr\u003ePerformance limits are the maximum deviation from perfection permitted for a Mclntosh instrument. We promise you that when you purchase an MC7106 from a Mclntosh franchised dealer, it will be capable of performance at or better than these limits.\u003cbr\u003e\u003cbr\u003ePOWER OUTPUT, SIX CHANNELS\u003cbr\u003e100 watts per channel into 8 ohm loads, or 160 watts per channel into 4 ohm loads minimum sine wave continuous average power output per channel, all channels operating.\u003cbr\u003e\u003cbr\u003eThe output RMS voltage is:\u003cbr\u003e28.3V across 8 ohms\u003cbr\u003e25.2V across 4 ohms\u003cbr\u003e\u003cbr\u003ePOWER OUTPUT, TWO CHANNELS BRIDGED\u003cbr\u003e320 watts into an 8 ohm load, minimum sine wave continuous average power output.\u003cbr\u003e\u003cbr\u003eThe output RMS voltage is:\u003cbr\u003e50.6V across 8 ohms\u003cbr\u003e\u003cbr\u003eOUTPUT LOAD IMPEDANCE\u003cbr\u003e8 or 4 ohms, for all six separate channels\u003cbr\u003e8 ohms, Bridged operation\u003cbr\u003e\u003cbr\u003eRATED POWER BAND\u003cbr\u003e20Hz to 20,000Hz\u003cbr\u003e\u003cbr\u003eTOTAL HARMONIC DISTORTION\u003cbr\u003e0.005% maximum harmonic distortion at any power level from 250 mW to rated power output.\u003cbr\u003e\u003cbr\u003eIHF DYNAMIC HEADROOM\u003cbr\u003e8 ohms, 1.8dB\u003cbr\u003e4 ohms, 2.1dB\u003cbr\u003e\u003cbr\u003eFREQUENCY RESPONSE\u003cbr\u003e+ 0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+ 0, -3.0dB from 10Hz to 100,000Hz\u003cbr\u003e\u003cbr\u003eINPUT SENSITIVITY\u003cbr\u003e1V, (2.5V with Level control at center detent)\u003cbr\u003e\u003cbr\u003eA-WEIGHTED SIGNAL-TO-NOISE RATIO\u003cbr\u003e93dB (113dB below rated output)\u003cbr\u003e\u003cbr\u003eINTERMODULATION DISTORTION, SMPTE\u003cbr\u003e0.005% maximum if instantaneous peak power does not exceed twice the output power rating.\u003cbr\u003e\u003cbr\u003eRATINGS\u003cbr\u003eWIDE BAND DAMPING FACTOR\u003cbr\u003e200 at 8 ohms\u003cbr\u003e100 at 4 ohms\u003cbr\u003e\u003cbr\u003eINPUT IMPEDANCE\u003cbr\u003e20,000 ohms\u003cbr\u003e\u003cbr\u003ePOWER GUARD\u003cbr\u003eClipping is prevented and THD does not exceed 2% with up to 14dB overdrive at 1000Hz.\u003cbr\u003e\u003cbr\u003ePOWER REQUIREMENTS\u003cbr\u003e120V, 50\/60Hz, 12A UL\/CSA\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eFRONT PANEL:\u003c\/strong\u003e Glass panel. Illuminated. Power Guard lights. Power LED's indicate when each channel pair is active.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBACK PANEL:\u003c\/strong\u003e Output terminals. Audio inputs and outputs. Power control jacks: in and out. Power sw: on or off\/remote. THX 25 pin input connector. Level controls: bridged and stereo\/mono. Mode sw: bridged, stereo or mono. Multi-room connector. Fuse.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSize\u003c\/strong\u003e 7-1\/16\"H, 17-1\/2\"W and 20\"D. \u003cstrong\u003eWeight\u003c\/strong\u003e 48 lb.\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here for a PDF copy of the Original MC7106 Sales Brochure on SkyFi Audio\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/brochure_mc7106.pdf?v=1662749238\" target=\"_blank\"\u003eClick here for a PDF copy of the Original MC7106 Sales Brochure\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here for a PDF copy of the MC7106 Owner's Manual on SkyFi Audio\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/owners_manual_MC7106.pdf?v=1662749236\" target=\"_blank\"\u003eClick here for a PDF copy of the MC7106 Owner's Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here to view all McIntosh pieces available for purchase on our website\" href=\"https:\/\/skyfiaudio.com\/collections\/our-mcintosh-collection\" target=\"_blank\"\u003eClick here to view all McIntosh available for purchase on our website\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe SkyFi Testing Process for Solid State Amplifiers:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1KHz test signal at the amplifier’s input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eItem\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eIncluded\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eMcIntosh Official Box\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003eYes Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eManual\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003eOnline Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eRemote\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003eNot Applicable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eCables\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003eYes - Power Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003ePhysical Condition \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" title=\"SkyFi Audio Equipment Rating Scale\" target=\"_blank\"\u003e(Info Here)\u003c\/a\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e8 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e\u003cb\u003eWorking Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan color=\"#000000\" size=\"2\" face=\"Helvetica Neue\"\u003e10 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ciframe width=\"1280\" height=\"720\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43819604377854,"sku":"104001","price":3499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc7106-6-channel-solid-state-amp-w-led-vu-meters-thx-rated-amplifier-325.jpg?v=1739801785"},{"product_id":"mcintosh-mc2000-50th-anniversary-tube-amplifier-collectors-set","title":"McIntosh MC2000 50th Anniversary Tube Amplifier - Collectors Set","description":"\u003cp\u003e\u003cb\u003eGeneral\u003c\/b\u003e:\u003c\/p\u003e\n\u003cp\u003eThe 50th Anniversary MC2000 is one of the rarest and most collectible amplifiers from McIntosh.\u003cbr\u003e\u003cbr\u003eIf you're lucky enough to visit the factory in Binghamton, you may have spotted one in a glass pedestal in their offices.\u003cbr\u003e\u003cbr\u003eBesides collectibility there are many reasons the MC2000 is wonderful:\u003cbr\u003e\u003cbr\u003e1) Like many Anniversary models it's gold plated, which makes it unique and gorgeous. \u003cbr\u003e2) It features a traditional McIntosh amplifier layout with large blue meters, not a boring sled design like most tube amps. \u003cbr\u003e3) The glass window in the front allows for a full view of the warm glow of the power tubes. \u003cbr\u003e4) It has more power than the MC275 giving it enough horsepower to drive a more complex and demanding speaker load - 130W per side. \u003cbr\u003e5) It's a dual mono design, featuring two amplifiers in a single chassis.\u003c\/p\u003e\n\u003cp\u003eThis particular example comes from my private collection. It's time for it to find a new home and spread the joy.\u003c\/p\u003e\n\u003cp\u003eIt has very low use and there are no notable signs of use. The metalwork is clean and shiny, the meters are bright, clear, and responsive.\u003c\/p\u003e\n\u003cp\u003eIt's complete with everything like day it left the factory, exactly as you would expect a collector piece to be. MSRP back in 2000 was $15,000 and this rare piece is priced accordingly. \u003cbr\u003e\u003cbr\u003eThis amplifier and its companion small accessory box will ship strapped to a pallet within the lower 48 US states for $600. Please inquire for international shipping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMcIntosh Performance Features Include:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Power Output\u003c\/span\u003e\u003cbr\u003eThe MC2000 is a Dual Mono design which consists of two entirely separate Mono, 130 watt vacuum tube power amplifiers, each with its own power supply. Output impedance connections are provided for 2, 4 and 8 ohm loudspeaker loads.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Patented Bifilar Wound Transformers and Output Circuit\u003c\/span\u003e\u003cbr\u003eThe power output sections utilize the famous McIntosh patented Unity Coupled Circuit with a Bifilar Wound Output Transformer for low distortion, extended frequency response and cool operating output tubes.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Balanced and Unbalanced Inputs\u003c\/span\u003e\u003cbr\u003eBoth Balanced and Unbalanced Inputs are included. Balanced connections guard against induced noise and allow long cable runs without compromising sound quality.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Illuminated Power Meters\u003c\/span\u003e\u003cbr\u003eTwo accurate, peak responding output meters continuously indicate the power delivered by each channel. A Peak Hold Meter Mode indicates the maximum power reached over a given time span. The meter illumination can be turned off so as to not detract from the listening environment, if desired.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Ceramic Tube Sockets with Gold Contacts\u003c\/span\u003e\u003cbr\u003eCeramic tube sockets with gold plated contacts provide firm, reliable connections that are not affected by atmospheric contamination. Output tube sockets include Air-Pipe cooling at their bases.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBrand Background\u003c\/b\u003e:\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMcIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products. \u003c\/span\u003e\u003cb\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/b\u003e\u003cspan\u003eMcIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eSingle Owner \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eRCA and XLR Inputs, 5-way speaker binding posts, IEC power cord, 12V trigger.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eSmooth, uncolored, undistorted natural and clean\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e8 - Very Slight Signs of Use\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\"\u003ehttps:\/\/skyfiaudio.com\/pages\/our-rating-scale\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWorking perfectly and tested in our lab.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eEverything like when it arrived new.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOriginal MSRP:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e$15,000.00\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003ePower Output\u003cbr\u003e130 watts into 8, 4 or 2 ohm loads is the minimum sine wave continuous average power output per channel from 20Hz to 20,000Hz with both channels operating.\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003e0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power per channel from 20Hz to 20,000Hz with both channels operating.\u003c\/p\u003e\n\u003cp\u003eIntermodulation Distortion\u003cbr\u003e0.5% maximum intermodulation distortion if instantaneous peak power output does not exceed twice the output rating per channel with both channels operating, for any combination of frequencies from 20Hz to 20,000Hz.\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003e20 Hz to 20,000 Hz\u003c\/p\u003e\n\u003cp\u003eFrequency Response (at 1 watt)\u003cbr\u003e+0, -0.25 dB from 20 Hz to 20,000 Hz\u003cbr\u003e+0, -3 dB from 10 Hz to 100,000 Hz\u003c\/p\u003e\n\u003cp\u003eHum and Noise (A-Weighted)\u003cbr\u003e100 dB below rated output\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003eGreater than 18\u003c\/p\u003e\n\u003cp\u003eOutput Load Impedance\u003cbr\u003e2, 4 or 8 ohms\u003c\/p\u003e\n\u003cp\u003eInput Impedance\u003cbr\u003e20K Ohms Unbalanced (RCA Phono Jacks)\u003cbr\u003e40K Ohms Balanced (XLR Connectors)\u003c\/p\u003e\n\u003cp\u003eInput Sensitivity (Switch Selectable)\u003cbr\u003e2.5 volts for rated output\u003cbr\u003e1.2 volts for rated output (1 volt for 100 watts output)\u003c\/p\u003e\n\u003cp\u003eTubes Compliment\u003cbr\u003e8 x KT88 or 6550 Output Tubes\u003cbr\u003e4 x 12AX7A Input Tubes\u003cbr\u003e2 x 12AT7 Driver Tubes\u003c\/p\u003e\n\u003cp\u003ePower Requirement\u003cbr\u003e120 Volts, 50\/60Hz at 4.8 Amps\u003c\/p\u003e\n\u003cp\u003eFinish\u003cbr\u003eStainless Steel Chassis with Titanium Gold Super Mirror Finish, Black Transformer Enclosures, Black Base, Glass Front Panel with gold plated Handles and Knobs\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e17-3\/4 inches (45.1cm) wide by 11 inches (27.9cm) high. Depth behind front panel is 18-3\/4 inches (47.6cm). Handle clearance required in front of the mounting panel is 1-5\/8 inches (4.1 cm).\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e• Amplifier: 135 pounds (61.2 kg) net, 144 pounds (65.3 kg) in shipping carton\u003cbr\u003e• Accessories: 18 pounds (8.2 kg) in shipping carton\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e2000\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReviews:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.stereophile.com\/tubepoweramps\/283\/index.html\" target=\"_blank\"\u003eStereophile Review\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/McIntosh-MC2000-Manual-Full-Color.pdf?v=1675440984\" target=\"_blank\"\u003eMcIntosh MC2000 Manual - In Full Color!\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/McIntosh-MC2000-Sales-Brochure.pdf?v=1675440984\" target=\"_blank\"\u003eOriginal MC2000 Sales Brochure \"New Millennium Edition, Limited Production, Designed by Sidney A. Corderman\"\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use an Amplitrex AT-1000 Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. We document the results of each tube and replace any weak or suspect tubes before proceeding. When we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable. If everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged. Once we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation.\u003c\/p\u003e\n\u003cp\u003eWe start by feeding the input of the amplifier with a low level 1KHz test signal, slowly increase its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. For tube amps we like to run this test at least twice. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003ePower Output\u003c\/span\u003e\u003cbr\u003e130 watts into 8, 4 or 2 ohm loads is the minimum sine wave continuous average power output per channel from 20Hz to 20,000Hz with both channels operating.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTotal Harmonic Distortion\u003c\/span\u003e\u003cbr\u003e0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power per channel from 20Hz to 20,000Hz with both channels operating.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eIntermodulation Distortion\u003c\/span\u003e\u003cbr\u003e0.5% maximum intermodulation distortion if instantaneous peak power output does not exceed twice the output rating per channel with both channels operating, for any combination of frequencies from 20Hz to 20,000Hz.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eRated Power Band\u003c\/span\u003e\u003cbr\u003e20Hz to 20,000Hz\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFrequency Response (at 1 watt)\u003c\/span\u003e\u003cbr\u003e+0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3dB from 10Hz to 100,000Hz\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eHum and Noise (A-Weighted)\u003c\/span\u003e\u003cbr\u003e100dB below rated output\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDamping Factor\u003c\/span\u003e\u003cbr\u003eGreater than 18\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eOutput Load Impedance\u003c\/span\u003e\u003cbr\u003e2, 4 or 8 ohms\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eInput Impedance\u003c\/span\u003e\u003cbr\u003e20K Ohms Unbalanced (RCA Phono Jacks)\u003cbr\u003e40K Ohms Balanced (XLR Connectors)\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eInput Sensitivity (Switch Selectable)\u003c\/span\u003e\u003cbr\u003e2.5 volts for rated output\u003cbr\u003e1.2 volts for rated output (1 volt for 100 watts output)\u003cbr\u003e\u003cbr\u003eTubes Complement\u003cbr\u003e8 M KT88 or 6550 Output Tubes\u003cbr\u003e4 M 12AX7A Input Tubes\u003cbr\u003e2 M 12AT7 Driver Tubes\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003ePower Requirement\u003c\/span\u003e\u003cbr\u003e120 Volts, 50\/60Hz at 4.8 Amps\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFinish\u003c\/span\u003e\u003cbr\u003eStainless Steel Chassis with Titanium Gold Super Mirror Finish, Black Transformer Enclosures, Black Base, Glass Front Panel with gold plated Handles and Knobs\u003cbr\u003e\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eItem\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eIncluded\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eOriginal Box\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003eYes Included\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eManual\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003eYes Included\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eRemote\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003eNot Applicable\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eCables\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003eYes - Power Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003ePhysical Condition\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" title=\"SkyFi Audio Equipment Rating Scale\" target=\"_blank\"\u003e(Info Here)\u003c\/a\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e8 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\"\u003e\u003cb\u003eWorking Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\"\u003e\n\u003cp align=\"center\"\u003e10 \/ 10\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ci\u003e\u003ciframe width=\"1280\" height=\"720\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE\" title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\"\u003e\u003c\/iframe\u003e\u003c\/i\u003e\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43843623518462,"sku":"100235","price":19999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc2000-50th-anniversary-tube-amplifier-collectors-set-808.jpg?v=1770311030"},{"product_id":"mcintosh-mha200-tube-headphone-amplifier","title":"McIntosh MHA200 Tube Headphone Amplifier - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Compact footprint: just 6-1\/8\" (15.6cm) x 9-1\/8\" (23.2cm)\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003e4 selectable headphone impedance ranges\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eBalanced and unbalanced analog inputs\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eBalanced stereo or dedicated Left \u0026amp; Right outputs\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTreat Your Headphones to McIntosh Vacuum Tube Amplification.\u003c\/p\u003e\n\u003cp\u003eThe MHA200 Vacuum Tube Headphone Amplifier is designed for discerning headphone enthusiasts who demand the most from their headphones. Its versatile set of connectivity options, including balanced inputs and outputs, allows for nearly all headphone types to be connected to enjoy an extraordinary personal listening experience.\u003c\/p\u003e\n\u003cp\u003eA pair of 12AT7 and 12BH7A dual triode vacuum tubes power the compact MHA200. The 12AT7 vacuum tubes amplify the incoming audio signal while the 12BH7A tubes provide the power to drive the output to your headphones with low distortion. The MHA200 uses a pair of our Unity Coupled Circuit output transformers to deliver pristine audio to your ears. Our Unity Coupled Circuit is the same technology McIntosh was founded on in 1949 and is still used in our vaunted full-size home audio vacuum tube amplifiers such as the timeless MC275 and the more recent MC1502. Indeed, the MHA200 shares many physical design traits with the aforementioned vacuum tube amplifiers.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\"An utterly captivating piece of kit that is likely to last decades and keep delighting you all the way through.\" Received Editor's Choice Award for Best High-End Hi-Fi Product 2022. – AVForums\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eA wide assortment of connectivity options come on the MHA200. For attaching your headphones, there are 3 options: a pair of 3-pin balanced XLR connectors for dedicated Left and Right balanced output; a 4-pin balanced XLR connector for balanced stereo output; and a 1\/4\" stereo headphone jack.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\"Regardless of the headphones we use, this little box turns in a lovely, lush sounding performance that’s hard to dislike. It sounds smooth but far from lifeless, delivering high levels of detail in a cohesive and musical manner… If you’re looking for a top-class headphone amplifier, there are few we’ve heard at this price that are as capable or as charming as this one.\" – What Hi-Fi\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFor connecting the MHA200 to your home music system's source components, it has 1 set each of both balanced and unbalanced inputs. Thanks to the MHA200's small size of just 6-1\/8\" (15.6cm) wide x 9-1\/8\" (23.2cm) deep and its balanced inputs, it can be placed close to your listening position for ease use, with long balanced audio cables connecting it to your audio system without fear of signal loss.\u003c\/p\u003e\n\u003cp\u003eThe MHA200 takes advantage of unique McIntosh technologies to create the best possible personal listening experience. The Unity Coupled Circuit transformers have been adapted to produce 4 headphone impedance ranges of 32 – 100, 100 – 250, 250 – 600, and 600 – 1,000 Ohms at 500mW so that virtually every headphone can receive legendary McIntosh sound quality and performance.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\"The MHA200 is a hell of a headphone amplifier.\" It \"will impress, entertain and impress again indefinitely.\" With the MHA200 \"you can enjoy as good a headphone experience as is currently available.\" Named Headphone Amplifier of The Year 2021. – HiFi+\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\"The McIntosh MHA200 Tube Headphone Amplifier is a contender for the best tube headphone amp manufactured to date, and easily outperforms more complex and unnecessarily feature-encumbered designs loaded with unnecessary additional tubes… It has ZERO musical flaws to report and is nearly perfect in execution.\" Highly recommended. – Positive Feedback\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eWe custom designed and manufactured the output transformers to match the tube amplifier section to the headphone output section in order to ensure maximum power transfer for various headphone loads. Instead of having to adapt to the impedance of the headphones with voltage gain in the input stage, the Unity Coupled Circuit output transformers' secondary windings ensure the full power of the MHA200 is available regardless of the impedance of your headphones. A custom, high-performance, and highly efficient toroidal power transformer with low mechanical hum and a low magnetic field, which helps reduce electrical noise, provides clean power to the amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eReveals \"the true nature of every headphone, without adding anything of its own. And it does so with power and punch but without sacrificing on the subtlety or micro dynamics. It allows the soundstage to breathe and come to life in an almost three-dimensional way inside your head.\" – What Hi-Fi Sound and Vision (India)\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eYou can select the best impedance range for your headphones via the LOAD knob. The VOLUME knob allows the MHA200 to be connected directly to music sources that only have a fixed volume output without needing a preamplifier for volume control. Conversely, if you're using a component with variable volume output, then the VOLUME knob should be set to the center Unity Gain point and the volume controlled by the variable output component.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\"The MHA200 is endlessly enjoyable with a rich, balanced and powerful sound, that’s is more forgiving than most rivals. Add to this the stellar build quality and ability to cater for a wide range of headphones and connections and the MHA200 is a benchmark product that’s highly recommended.\" – Audiograde\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe MHA200 features a custom formed stainless steel chassis with a polished mirror finish that will accentuate the glow of the vacuum tubes, making it a statement piece to display in your home and to use with pride. A vintage die cast aluminum McIntosh name badge adorns the side of the MHA200. A Power Control input and output allows the MHA200 to turn on and off with other connected McIntosh components, such as preamplifiers, CD players, turntables, or media steamers. A protective vacuum tube cover is included. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMHA200, Owner's Manual, Power Cord.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e6-1\/8\" (15.6cm) x 5-3\/4\" (14.6cm) x 9-1\/8\" (23.2cm)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e10.5 lbs (4.8 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/ReviewAwardDocuments\/MHA200-HiFi-Plus-July-2021-issue-197.pdf?la=en\u0026amp;rev=735a6eb23e1b4e0b929d5454766ffb07\u0026amp;revision=735a6eb2-3e1b-4e0b-929d-5454766ffb07\" target=\"_blank\"\u003eMHA200 Named Headphone Amplifier of The Year by HiFi+ Magazine\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh MHA200 Tube Headphone Amplifier on SkyFi Audio\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MHA200-OM-24102303.pdf?rev=0466c6ee3980432787fa953933a4679e\u0026amp;revision=0466c6ee-3980-4327-87fa-953933a4679e\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eHEADPHONE OUTPUT SPECIFICATIONS\u003cbr\u003eHeadphone Power Output\u003cbr\u003e500mW\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eHeadphone Output Impedance\u003cbr\u003e32-100 Ohms\u003cbr\u003e100-250 Ohms\u003cbr\u003e250-600 Ohms\u003cbr\u003e600-1,000 Ohms\u003c\/p\u003e\n\u003cp\u003eELECTRONIC SPECIFICATIONS\u003cbr\u003ePower Output per Channel\u003cbr\u003eN\/A\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSpeaker Impedance\u003cbr\u003eN\/A\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003e20Hz to 20kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003e0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz \u0026lt;0.20% at 1W, 20Hz to 20,000Hz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIntermodulation Distortion\u003cbr\u003e0.04% Typical\u003cbr\u003e0.4% Maximum\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Headroom\u003cbr\u003e1.5dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003e+0, -0.5dB from 20Hz to 20,000Hz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSensitivity (Unbalanced)\u003cbr\u003e1.0 Vrms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSensitivity (Balanced)\u003cbr\u003e2.0 Vrms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum Input Signal (Unbalanced)\u003cbr\u003e8V\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMaximum Input Signal (Balanced)\u003cbr\u003e16V\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSignal To Noise Ratio\u003cbr\u003e94dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eInput Impedance (Balanced \/ Unbalanced)\u003cbr\u003e20K\/10K\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003e\u0026gt;150\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePreamplifier Output\u003cbr\u003eN\/A\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePreamplifier Output Impedance\u003cbr\u003eN\/A\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eVoltage Gain\u003cbr\u003e12dB at 32 Ohms\u003cbr\u003e17dB at 100 Ohms\u003cbr\u003e21dB at 250 Ohms\u003cbr\u003e25dB at 600 Ohms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePower Guard\u003cbr\u003eNo\u003c\/p\u003e\n\u003cp\u003eGENERAL SPECIFICATIONS\u003cbr data-mce-fragment=\"1\"\u003eOutput Meters\u003cbr data-mce-fragment=\"1\"\u003eNo\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eVacuum Tube or Solid State\u003cbr data-mce-fragment=\"1\"\u003eVacuum Tube\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003ePower Requirement\u003cbr data-mce-fragment=\"1\"\u003e120V 50\/60Hz, 1.5A\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eStandby Power Requirement\u003cbr data-mce-fragment=\"1\"\u003e\u0026lt;0.5 Watts\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Type\u003cbr data-mce-fragment=\"1\"\u003eUnity Coupled Output Transformer  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960696111358,"sku":"","price":3000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mha200-tube-headphone-amplifier-new-784.jpg?v=1770423185"},{"product_id":"mcintosh-mc303-3-channel-solid-state-amplifier","title":"McIntosh MC303 3-Channel Solid State Amplifier - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 300 Watts x 3 Channels\u003cbr\u003e• Features McIntosh Renowned Autoformer \u003cbr\u003e• Designed for home theaters\u003cbr\u003e• Tri-Amp capability\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe McIntosh MC303 is our most powerful multi-channel amplifier to date, providing 300 Watts into each of 3 channels.\u003c\/p\u003e\n\u003cp\u003eIt features our renowned Autoformer™, which allows its full 300 Watts of power to be delivered into 2, 4 or 8 Ohm speakers with the lowest noise and distortion performance possible.\u003c\/p\u003e\n\u003cp\u003eThe MC303 was designed with the intent to drive a home theater’s front left, front right and center channels. As most of a movie’s soundtrack is delivered by these three channels, the powerful MC303 provides all the power needed for an amazing in-home theater experience.\u003c\/p\u003e\n\u003cp\u003eFor surround channels, combine the MC303 with our MC312 or MC152 amplifiers and fully immerse yourself in your movie collection. For music lovers, the MC303 can be used in tri-amping configurations on compatible speakers, such as our XRT1.1K or XRT2.1K.\u003c\/p\u003e\n\u003cp\u003eThe MC303 shares many notable McIntosh technologies that are found in our other home audio and home theater products, including Power Guard® that prevents over-driving of the amplifier and the resulting harsh sounding clipping that could damage your speakers. Sentry Monitor™ is our fuse-less short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal\u003c\/p\u003e\n\u003cp\u003eInputs for both balanced cables and unbalanced cables are available to provide flexibility in connecting to the rest of your system.\u003c\/p\u003e\n\u003cp\u003eA triple bank of blue watt meters provides instant recognition of power output (the meters may be switched off for theater use if they conflict with the television or movie screen).\u003c\/p\u003e\n\u003cp\u003eAesthetically, the MC303 is every bit as McIntosh as any of our products. A polished stainless steel chassis, classic black glass front panel, knobs and custom machined aluminum handles all come standard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMC303, Owner's Manual, Power Cord.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e17-3\/4\" (45.09cm) x 12-3\/8\" (31.43cm) (including feet) x 22\" (55.88cm) (including front panel and cables)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e155 lbs (70.3 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/ReviewAwardDocuments\/MC303-Stereophile-509.pdf?rev=1efa006dc1b84a8ab39c667cf1e28adb\u0026amp;revision=1efa006d-c1b8-4a8a-b39c-667cf1e28adb\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/ReviewAwardDocuments\/MC303-Stereophile-509.pdf?rev=1efa006dc1b84a8ab39c667cf1e28adb\u0026amp;revision=1efa006d-c1b8-4a8a-b39c-667cf1e28adb\"\u003eMC303 Stereophile 509\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"MC303 Power Amplifier Owner's Manual on SkyFi Audio\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc303om01.pdf?rev=f19199221e81428ab535c58345b52171\u0026amp;revision=f1919922-1e81-428a-b535-c58345b52171\" target=\"_blank\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc303om01.pdf?rev=f19199221e81428ab535c58345b52171\u0026amp;revision=f1919922-1e81-428a-b535-c58345b52171\"\u003eMC303 Power Amplifier Owner's Manual\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - ASCENT SERIES PK10 POWER CORD - NEW - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Ascent 10 Gauge Power Cord\u003c\/a\u003e - Better \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - SUMMIT SERIES PK10 PALLADIAN POWER CORD - NEW\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Palladian 10 Gauge Power Cord\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eELECTRONIC SPECIFICATIONS\u003cbr\u003ePower Output per Channel\u003cbr\u003e300W @ 2, 4 or 8 Ohms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNumber of Channels\u003cbr\u003e3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003e0.005%\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eS\/N below rated output\u003cbr\u003e112dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Headroom\u003cbr\u003e1.8dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003e\u0026gt;40\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003e20Hz to 20kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003e+0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3dB from 10Hz to 100,000Hz\u003c\/p\u003e\n\u003cp\u003eGENERAL SPECIFICATIONS\u003cbr\u003eCircuit Configuration\u003cbr\u003ePush-Pull Complementary Autoformers\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCircuit Design\u003cbr\u003eSolid State\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Bridge\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Parallel\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Type\u003cbr\u003eAutoformer™\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeters\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeter Light Switch\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced Input\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFront Panel\u003cbr\u003eGlass with handles\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIllumination\u003cbr\u003eLED Fiber Optic\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eChassis Style\u003cbr\u003eInverted\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960696471806,"sku":"","price":14000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc303-3-channel-solid-state-amplifier-new-580.jpg?v=1684258951"},{"product_id":"mcintosh-mc257-7-channel-solid-state-amplifier","title":"McIntosh MC257 7-Channel Solid State Amplifier - NEW","description":"\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Featuers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e250 Watts x 3 Channels; 200 Watts x 7 Channels\u003c\/li\u003e\n\u003cli\u003eTripleView™ Power Output Meter\u003c\/li\u003e\n\u003cli\u003e94% increase in Dynamic Headroom\u003c\/li\u003e\n\u003cli\u003eDynamic Power Manager\u003csup\u003e®\u003c\/sup\u003e; Power Guard\u003csup\u003e®\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for home theaters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eBring your home theater dreams to life with the MC257 7-Channel Power Amplifier. Experience the latest blockbusters along with your favorite movies like never before in your home theater with the sound quality and power only McIntosh can deliver.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC257 is highlighted by our new eye-catching TripleView\u003csup\u003e™\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003ePower Output Meter that independently indicates the real time power reading of the amplifier’s three front channels. The easy-to-read, 15” (38 cm) wide TripleView meter design is a streamlined approach to the three individual meters found on our previous generation 7-channel home theater amplifier. Instead of three separate meter windows each housing a single meter, the TripleView features three of our traditional mechanical meters in a single meter enclosure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eWhile a totally new design, each of the three pointers in the TripleView meter have the same inviting motion that McIntosh meters are known for and perform at the same high level as any of our meters. The captivating look and glow of the TripleView meter is sure to be a conversation starter, but its trademarked blue lighting can be turned off so as not to compete with your TV or movie screen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cblockquote\u003e\n\u003cp\u003eThe combo of the McIntosh MX170\u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/home-theater-processors\/MX170\"\u003e\u003c\/a\u003e A\/V Processor and MC257 7-Channel Amplifier \"checked all the performance-related boxes when it came to signal integrity and immersion. Also, clarity and dynamics were off the charts... It had an amazing surround bubble that put me in the center of the action. This soundscape featured pinpoint imaging of all the discrete effects. The overall clarity, dynamic punch, and low distortion of the sound were above reproach.\" – Secrets of Home Theater and High Fidelity.\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eIn addition to the new TripleView meter, the MC257 features many other upgrades. When using just the front left, center and right channels, power output has been increased by 25% from 200 Watts per channel to 250 Watts per channel. When using all 7 channels, each will receive a healthy 200 Watts per channel. Regardless of how many channels are used, the full 200 or 250 Watts is delivered to either 4 or 8 Ohm speakers via our Dynamic Power Manager\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e(DPM) technology. Filter capacity has been increased by 20% which has produced an amazing 94% increase in dynamic headroom from 1.7dB to 3.3dB as well as improving low frequency performance – both key features in a home theater amplifier, especially when listening to an energetic soundtrack.\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC257 comes with five of our McIntosh Monogrammed Heatsinks\u003csup\u003e™\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003ewhich are connected to advanced high current output transistors to efficiently and silently cool the amplifier; as a result, noisy cooling fans that can interfere with the movie soundtrack are not needed. A quiet, specially wound toroidal isolation power transformer also helps keep noise to a minimum. Speaker terminals have been updated to our standard gold-plated binding posts that prevent corrosion and ensure a quality signal is sent to your home theater speakers. Our power management system that will turn the amplifier off after a set amount of time when no input signal has been detected has also been added. Finally, the front panel is now lit by direct LED backlighting for improved color accuracy and durability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eBesides all these upgrades, the MC257 comes with steadfast McIntosh technologies like Power Guard\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eto prevent potential speaker damage caused by clipping and over-driving of the amplifier. Our Sentry Monitor\u003csup\u003e™\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003etechnology protects against short-circuits by disengaging the output stage should the current ever exceed safe operating levels (it then resets automatically when operating conditions return to normal). Both balanced and unbalanced inputs are included to connect the MC257 home theater amplifier to your home theater processor.\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/home-theater-processors\"\u003e\u003c\/a\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon JohnsonÕs inauguration speech to Woodstock to the famous Grateful Dead ÒWall of Sound,Ó McIntosh has not only witnessed history, we have shaped it. \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC257 can be utilized in many ways: it can power a 7-channel home theater by itself; it can be paired with either our MI128\u003cspan\u003e \u003c\/span\u003eor MI254\u003cspan\u003e \u003c\/span\u003edigital amplifiers in home theaters that have more than 7-channels; or it can be used in 5-channel home theaters with 2 of its channels available to power a second audio zone in your home.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"product-description\"\u003e\n\u003cdiv class=\"wrapper\"\u003e\n\u003cdiv class=\"odd-even-col\"\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC257 sits on a polished stainless steel chassis and bears the classic McIntosh design of a black glass front panel with the TripleView meter, illuminated logo, control knobs, and aluminum end caps. Contact your local dealer\u003cspan\u003e \u003c\/span\u003eto learn more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eRCA, XLR, Speaker Binding Posts\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnit, Power Cord, Manual\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e17-1\/2\" (44.5cm) x 9-7\/16\" (23.9cm) (including feet) x 21\" (53.3cm) (including front panel and cables)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnit: 95lbs\u003c\/p\u003e\n\u003cp\u003eShipping: \u003cmeta charset=\"utf-8\"\u003e128lbs\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick \u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc257om01.pdf?rev=720c1814e3fd4c3aa62fb22fba82fef5\u0026amp;revision=720c1814-e3fd-4c3a-a62f-b22fba82fef5\"\u003eHere\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" title=\"McIntosh Speaker Cables on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" title=\"McIntosh Power Control Cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFTC Power Output Rating\u003c\/dt\u003e\n\u003cdd\u003e250 W\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003ePower Output per Channel\u003c\/dt\u003e\n\u003cdd\u003e3 Front Channels only: 250 W into 4 or 8 ohms\u003cbr\u003eAll 7 Channels: 200 W into 4 or 8 ohms\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eNumber of Channels\u003c\/dt\u003e\n\u003cdd\u003e7\u003cbr\u003e(can also be used as a 2-zone amplifier with 5 channels in zone A and 2 channels in zone B)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eTotal Harmonic Distortion\u003c\/dt\u003e\n\u003cdd\u003e0.005%\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eS\/N below rated output\u003c\/dt\u003e\n\u003cdd\u003e108dB\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eDynamic Headroom\u003c\/dt\u003e\n\u003cdd\u003e3.3dB\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eDamping Factor\u003c\/dt\u003e\n\u003cdd\u003e\u0026gt;70 @ 4 ohms\u003cbr\u003e\u0026gt;140 @ 8 ohms\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eRated Power Band\u003c\/dt\u003e\n\u003cdd\u003e20Hz to 20kHz\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFrequency Response\u003c\/dt\u003e\n\u003cdd\u003e+0, -0.25dB from 20Hz to 20kHz\u003cbr\u003e+0, -3dB from 10Hz to 100kHz\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eControl\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eRemote Power Control\u003c\/dt\u003e\n\u003cdd\u003eYes, 7 or 5 + 2 Channel\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMulti-Channel DB25 Cable\u003c\/dt\u003e\n\u003cdd\u003eNo\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eGeneral Specifications\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eCircuit Configuration\u003c\/dt\u003e\n\u003cdd\u003ePush-Pull Complementary\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eCircuit Design\u003c\/dt\u003e\n\u003cdd\u003eSolid State\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMono Bridge\u003c\/dt\u003e\n\u003cdd\u003eNo\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMono Parallel\u003c\/dt\u003e\n\u003cdd\u003eNo\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eOutput Type\u003c\/dt\u003e\n\u003cdd\u003eDirect Coupled with Dynamic Power Manager\u003csup\u003e®\u003c\/sup\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMeters\u003c\/dt\u003e\n\u003cdd\u003eYes\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMeter Light Switch\u003c\/dt\u003e\n\u003cdd\u003eYes\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eBalanced Input\u003c\/dt\u003e\n\u003cdd\u003e7\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFront Panel\u003c\/dt\u003e\n\u003cdd\u003eGlass\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eIllumination\u003c\/dt\u003e\n\u003cdd\u003eDirect LED\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eChassis Style\u003c\/dt\u003e\n\u003cdd\u003ePolished stainless steel \u0026amp; black painted steel\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eConnectivity\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eSpeaker Binding Post Type\u003c\/dt\u003e\n\u003cdd\u003eStandard\u003c\/dd\u003e\n\u003cdd\u003e\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960696537342,"sku":null,"price":13000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc257-7-channel-solid-state-amplifier-new-506.jpg?v=1737754208"},{"product_id":"mcintosh-mi502-digital-amplifier","title":"McIntosh MI502 Digital Amplifier - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Versatile audio amplifier for custom install applications\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003e500 Watts into 8 Ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003e800 Watts into 4 Ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003e2U rack mountable\u003cbr data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eSignal sensing\u003cbr data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003ePower Guard® and Sentry Monitor™ \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe MI502 2-Channel Digital Amplifier is a flexible component and welcome addition to a custom installed home audio or home theater system. It delivers world renowned McIntosh sound quality at a rate of 500 Watts into 8 Ohm speakers or 800 Watts into 4 Ohm speakers. It uses highly high-tech closed loop digital switching amplifiers and resilient power supplies that produce performance levels seldom heard in custom install audio.\u003c\/p\u003e\n\u003cp\u003eThe applications are nearly limitless for how to use the versatile MI502 in your home entertainment system. It can be used to power the front left and right speakers in a home theater; to drive two in-wall subwoofers; a pair of MI502s could drive the three front channels of your in-home cinema plus one subwoofer; or to power a pair of outdoor speakers for when the party makes it way outside. Additionally, a stack of multiple MI502s could be used to power the distributed audio speakers installed throughout your home.\u003c\/p\u003e\n\u003cp\u003eThe MI502 is rack mountable and has a mounting height of 2U making it easy to install in an equipment rack via the included mounting brackets (the mounting brackets are removable for non-rack installations). As a highly efficient Class D amplifier, it does not require noisy cooling fans to maintain nominal operating temperature so the only thing you'll hear coming from it is amazing sounding audio that will impress yourself and your guests.\u003c\/p\u003e\n\u003cp\u003eOn the front panel are two blue McIntosh Watt Meters that display the power output of each channel, while multi-color LED indicators display the status of each channel. The back panel includes a pair of balanced and unbalanced inputs to connect the MI502 to your preamplifier. A pair of our standard 5-way speaker binding posts are included to connect your speakers.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eOther features that come with the MI502 are: \u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e• Power Guard® signal overload technology that prevents overdriving the speakers\u003cbr data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eSentry Monitor™ short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal\u003cbr data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003ePower Control 12 Volt triggering capabilities\u003cbr data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eEco-friendly on\/off signal sensing that turns the unit off if no input signal has been detected for a set amount of time or automatically turns the amp on when it senses a signal\u003c\/p\u003e\n\u003cp\u003eThe MI502 includes many McIntosh design cues including a black glass front panel, our coveted blue Watt meters, an illuminated McIntosh logo, and a familiar form factor highlighted by silver trim. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMI502, Owner's Manual, Power Cord, Two (2) Side Rack Mounted Brackets and Screw Fasteners.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e17-1\/2\" (44.45cm) (19\" (48.3cm with mounting ears)) x 4-5\/16\" (11cm) (including feet) x 21\" (53.3cm) (including front panel and cables)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e21.5 lbs (9.8 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.whathifi.com\/news\/mcintoshs-500-watt-mi502-digital-amplifier-is-here-to-beef-up-custom-home-cinema-installs\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh MI502 Digital Amplifier on SkyFi Audio\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MI502_OM_24119700_P77412.pdf?rev=3d3efe2c31c74679ab031fd0fb890a51\u0026amp;revision=3d3efe2c-31c7-4679-ab03-1fd0fb890a51\" target=\"_blank\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MI502_OM_24119700_P77412.pdf?rev=3d3efe2c31c74679ab031fd0fb890a51\u0026amp;revision=3d3efe2c-31c7-4679-ab03-1fd0fb890a51\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - ASCENT SERIES PK10 POWER CORD - NEW - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Ascent 10 Gauge Power Cord\u003c\/a\u003e - Better \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - SUMMIT SERIES PK10 PALLADIAN POWER CORD - NEW\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Palladian 10 Gauge Power Cord\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eELECTRONIC SPECIFICATIONS\u003cbr\u003ePower Output per Channel\u003cbr\u003e500 Watts into 8 Ohms\u003cbr\u003e800 Watts into 4 Ohms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNumber of Channels\u003cbr\u003e2\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003e0.05%\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eS\/N below rated output\u003cbr\u003e98dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Headroom\u003cbr\u003e8 Ohms: 2.7dB\u003cbr\u003e4 Ohms: 3.7dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003e8 Ohms: \u0026gt;85\u003cbr\u003e4 Ohms: \u0026gt;45\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003e20Hz to 20kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003e+0, -0.9dB from 20Hz to 20,000Hz\u003c\/p\u003e\n\u003cp\u003eGENERAL SPECIFICATIONS\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eCircuit Configuration\u003cbr data-mce-fragment=\"1\"\u003eClosed loop digital switching\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eCircuit Design\u003cbr data-mce-fragment=\"1\"\u003eDigital\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eMono Bridge\u003cbr data-mce-fragment=\"1\"\u003eN\/A\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eMono Parallel\u003cbr data-mce-fragment=\"1\"\u003eN\/A\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Type\u003cbr data-mce-fragment=\"1\"\u003eDirect Coupled\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eMeters\u003cbr data-mce-fragment=\"1\"\u003eYes\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eMeter Light Switch\u003cbr data-mce-fragment=\"1\"\u003eNo\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced Input\u003cbr data-mce-fragment=\"1\"\u003e1\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eFront Panel\u003cbr data-mce-fragment=\"1\"\u003eGlass with removable rack mounting ears\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eIllumination\u003cbr data-mce-fragment=\"1\"\u003eDirect LED\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eChassis Style\u003cbr data-mce-fragment=\"1\"\u003eBlack painted steel\u003cbr\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960696635646,"sku":"","price":5000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mi502-digital-amplifier-new-939.jpg?v=1684259433"},{"product_id":"mcintosh-mc901-hybrid-drive-dual-mono-amplifier","title":"McIntosh MC901 Hybrid Drive Dual Mono Amplifier (Single) - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Includes our Hybrid Drive™ technology that uses the best of vacuum tubes and solid state to produce the best sound performance\u003cbr\u003e• The ultimate solution for bi-amping loudspeakers: 300 Watt vacuum tube amplifier and 600 Watt solid state amplifier on one chassis\u003cbr\u003e• Vacuum tube section powers mid and upper drivers\u003cbr\u003e• Solid state section drives power hungry woofers\u003cbr\u003e• DualView™ Power Output Meter\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMcIntosh has been perfecting vacuum tube amplifiers since the 1940s and solid state amplifiers since the 1960s. Our amplifiers have been used at many historic events including presidential inaugurations and Woodstock, as well as in landmark sound systems like the Grateful Dead's Wall of Sound and Despacio. From that heritage comes a truly one-of-a-kind home audio amplifier only we could dream of, design and build as the ultimate solution for bi-amping loudspeakers: the McIntosh MC901 Dual Mono Amplifier.\u003c\/p\u003e\n\u003cp\u003eThe MC901 is a monoblock amplifier that drives a single speaker. But it is unlike any other monoblock amplifier. What makes the MC901 so unique is that it's two amplifiers combined into one. Adding to the uniqueness is that each amplifier is of differing design philosophies: the MC901 consists of a 300 Watt vacuum tube amplifier attached to a 600 Watt solid state amplifier on one unified chassis.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe MC901 includes our Hybrid Drive™ technology that uses the best of vacuum tubes and solid state to produce the best sound performance. The 300 Watt vacuum tube portion powers the speaker's mid and upper drivers via eight KT88 output tubes, plus four 12AT7 and two 12AX7A signal tubes; the solid state section delivers 600 Watts of dedicated power to the power hungry woofers. The 300 Watt vacuum tube amp in the MC901 uses our patented Unity Coupled Circuit output transformer – the same technology McIntosh was founded on in 1949 – to deliver its full 300 Watts into almost any speaker regardless if it has 2, 4 or 8 Ohm impedance. Similarly, the 600 Watt solid state amp delivers its full 600 Watts into a 2, 4 or 8 Ohm impedance speaker via our Autoformer™ technology.\u003c\/p\u003e\n\u003cp\u003eVacuum tubes do not perform at their best when they are amplifying lower frequencies that are not being used by the loudspeaker. With the MC901, the vacuum tube amp will not be burdened with low end reproduction as the solid state section will drive these frequencies. The two amplifier sections of the MC901 are designed to work together in a synergistic relationship and are specifically engineered to assure that each section only amplifies its intended frequencies. Each amplifier section has its own discrete power supply so neither siphons power or performance away from the other. All of this results in easy bi-amping with unparalleled performance and sound reproduction from your speakers.\u003c\/p\u003e\n\u003cp\u003eWATCH: Discover why Steve Guttenberg The Audiophiliac \"reached new heights of aural ecstasy\" when listening to the MC901 Dual Mono Amplifier at the World of McIntosh Townhouse.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"888\" height=\"500\" src=\"https:\/\/www.youtube.com\/embed\/L1FXInoGF6E\" title=\"I was gobsmacked by this $100,000+ McIntosh\/Sonus Faber system\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003ePrior to the MC901, bi-amping a speaker required two separate amplifiers. It also required an external crossover, along with a lot of trial and error, to properly configure the two detached amplifiers so they worked together as best as possible. The MC901 solves this issue thanks to its internal, adjustable crossover with the controls easily accessible on the top of the unit. These adjustable crossover filters allow you to optimize the performance of both amplifier sections to your listening preferences. Relative gain levels for each amplifier section can be adjusted from -6dB to +3dB. A direct feed can also be connected to each amplifier section, thus bypassing the filters.\u003c\/p\u003e\n\u003cp\u003eLike virtually all McIntosh amplifiers, the MC901 features an iconic \"McIntosh Blue\" Watt meter, which has come to be recognized around the world as a symbol of quality home audio. And just like the MC901 itself is a new design, so too is its meter with the introduction of our new DualView™ Power Output Meter. The DualView meter features two of our traditional, fast responding mechanical meters stacked above and below each other in a single meter window; one meter is dedicated to the 300 Watt vacuum tube amp and the other to the 600 Watt solid state amp. Each meter operates independently of the other and displays the real time power reading of each amplifier section.\u003c\/p\u003e\n\u003cp\u003eWhile an entirely new design, the MC901 comes with the technology one would expect from a McIntosh amplifier:\u003c\/p\u003e\n\u003cp\u003e• Power Guard® that monitors and adjusts the input signal in the 600 Watt solid state amplifier section in real time, then makes unobtrusive adjustments to prevent harsh sounding distortion and potential speaker damaging clipping.\u003cbr\u003e• Power Guard Screen Grid Sensor™ (SGS). The 300 Watt vacuum tube amplifier section of the MC901 breaks new ground as it's our first amplifier to feature our new • Power Guard SGS™ technology. Power Guard SGS helps prevent premature vacuum tube failure by monitoring the screen grid current in the KT88 output vacuum tubes. If the current becomes too high, a circuit in Power Guard SGS is activated which then dynamically attenuates the input signal in real time to keep the vacuum tubes operating at safe levels.\u003cbr\u003e• Sentry Monitor™ observes the output current and shuts the amplifier off if it ever exceeds safe limits.\u003cbr\u003e• Quad Balanced design that cancels virtually all noise and distortion that may have crept into the audio signal.\u003cbr\u003e• Power Control that can send power on\/off signals to other connected McIntosh components for easy system power up and shutdown.\u003cbr\u003e• Our patented, gold-plated Solid Cinch™ speaker binding posts that easily and securely attach the speaker cables.\u003cbr\u003e• McIntosh Monogrammed Heatsinks™ that are connected to advanced high current output transistors efficiently cool the solid state amplifier section.\u003cbr\u003e• Our Power Management System that will turn the entire unit off after a set amount of time when no input signal has been detected.\u003c\/p\u003e\n\u003cp\u003eAlthough the MC901 may look different than any McIntosh product before it, a quick glance reveals signature McIntosh design cues. The top is highlighted by a series of diagrams printed on glass that outline the basic circuitry and specifications of the unit, along with a glass nameplate trimmed with a circular aluminum ring that's finished to match the front panel endcaps. The sides are adorned with vintage McIntosh-styled die cast aluminum name badges. Two classic McIntosh knobs are located on the front of the polished stainless steel chassis, and direct LED backlighting illuminates the DualView meter, McIntosh logo and the lettering on the black glass front panel.\u003c\/p\u003e\n\u003cp\u003eThe uncompromising level of fit and finish that is expected of a McIntosh product completes the MC901. It can be combined with a variety of preamplifiers, turntables, CD players, media streamers, speakers and other specialty products to form a complete home audio system. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• One MC901 Dual Mono Amplifier\u003cbr data-mce-fragment=\"1\"\u003e• One Owner's Manual\u003cbr data-mce-fragment=\"1\"\u003e• Two Terminal Connection Covers\u003cbr data-mce-fragment=\"1\"\u003e• One AC Power Cord\u003cbr data-mce-fragment=\"1\"\u003e• One McIntosh Output Terminal Wrench\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e17-17\/32\" (44.5cm) x 13-3\/8\" (34cm) x 29-17\/32\" (75cm)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e180 lbs (81.6 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"Unboxing \u0026amp; Review of the McIntosh MC901 Dual Mono Amplifier\" src=\"https:\/\/www.youtube.com\/embed\/fTWjZz5Zgug\" height=\"648\" width=\"1152\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh MC901 Hybrid Drive Dual Mono Amplifier on SkyFi Audio\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC901-OM-24104902.pdf?rev=6f637584330a4121b6c5990750b7f83f\u0026amp;revision=6f637584-330a-4121-b6c5-990750b7f83f\" target=\"_blank\"\u003eMC901 Dual Mono Amplifier Owner's Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - ASCENT SERIES PK10 POWER CORD - NEW - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Ascent 10 Gauge Power Cord\u003c\/a\u003e - Better \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - SUMMIT SERIES PK10 PALLADIAN POWER CORD - NEW\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Palladian 10 Gauge Power Cord\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eELECTRONIC SPECIFICATIONS\u003cbr\u003ePower Output per Channel\u003cbr\u003eSolid State section: 600 Watts @ 2, 4 or 8 Ohms\u003cbr\u003eVacuum Tube section: 300 Watts @ 2, 4 or 8 Ohms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNumber of Channels\u003cbr\u003e1\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003eSolid State section: 0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz\u003cbr\u003e\u003cbr\u003eVacuum Tube section: 0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eS\/N below rated output\u003cbr\u003eSolid State section: 122dB\u003cbr\u003eVacuum Tube section: 112dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Headroom\u003cbr\u003eSolid State section: 2.5dB\u003cbr\u003eVacuum Tube section: 1.2dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003eSolid State section: \u0026gt;40\u003cbr\u003eVacuum Tube section: \u0026gt;18\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003eSolid State section: 20Hz to 20kHz\u003cbr\u003eVacuum Tube section: 20Hz to 20kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003eSolid State section:\u003cbr\u003e+0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3dB from 10Hz to 100,000Hz\u003cbr\u003e\u003cbr\u003eVacuum Tube section:\u003cbr\u003e+0, -0.5dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3dB from 10Hz to 70,000Hz\u003c\/p\u003e\n\u003cp\u003eGENERAL SPECIFICATIONS\u003cbr\u003eCircuit Configuration\u003cbr\u003eSolid State section: Quad Balanced\u003cbr\u003eVacuum Tube section: Unity Coupled\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCircuit Design\u003cbr\u003eSolid State and Vacuum Tube\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Bridge\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Parallel\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Type\u003cbr\u003eSolid State section: Autoformer™\u003cbr\u003eVacuum Tube section: Unity Coupled Output Transformer\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeters\u003cbr\u003eDualView™ Power Output Meter\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeter Light Switch\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced Input\u003cbr\u003e3 (1 Solid State, 1 Vacuum Tube, 1 Composite)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFront Panel\u003cbr\u003eGlass\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIllumination\u003cbr\u003eDirect LED\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eChassis Style\u003cbr\u003ePolished stainless steel \u0026amp; black painted steel\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960696799486,"sku":"","price":22000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc901-hybrid-drive-dual-mono-amplifier-single-new-172.jpg?v=1687383896"},{"product_id":"mcintosh-mc1-25kw-quad-balanced-monoblock-amplifier","title":"McIntosh MC1.25KW Quad Balanced Monoblock Amplifier (Single) - New","description":"\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1200 Watts @ 2, 4 or 8 Ohms\u003c\/li\u003e\n\u003cli\u003eQuad Balanced Design\u003c\/li\u003e\n\u003cli\u003eLegendary McIntosh Autoformers in Output Stage\u003c\/li\u003e\n\u003cli\u003ePower Guard and Sentry Monitor for Ultimate Protection\u003c\/li\u003e\n\u003cli\u003ePower Control to easily integrate with other McIntosh components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe MC1.25KW Quad Balanced Power Amplifier is one of our most advanced amplifiers. Redesigned from top to bottom, it replaces the venerable MC1.2KW as our most powerful single chassis monoblock amplifier. A simple glance at this 158 pound (71.7 kg) amp is enough to convey its power and performance capabilities, but when you hear it – then you’ll truly understand what it can do.\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC1.25KW outputs 1,200 Watts of pure power into a single channel with a nearly imperceptible total harmonic distortion of 0.005%. This astonishing amount of power is fully available to 2, 4 or 8 Ohm \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/speakers\"\u003espeakers\u003c\/a\u003e via our Autoformer™ technology. A pair of these amps can anchor a home audio system that can rival nearly any stereo system in the world.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cblockquote\u003e\n\u003cp\u003eThe MC1.25KW is a fantastic amplifier with \"unlimited dynamics, crushing power, accuracy, speed, authority, precise control, purity and transparency.\" Recipient of Reference Award. - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC125KW-Hi-Fi-Voice\"\u003eHi-Fi Voice\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003eUpdates and enhancements abound in the MC1.25KW. A 50% increase in filter capacity improves the performance of low end frequencies as well as increasing dynamic headroom. The top of the amp showcases an updated yet unmistakable McIntosh industrial design that will fit right in with current McIntosh products or those made decades ago. The audio Autoformer and power transformer remain located just behind the front panel but are now contained in new glass topped enclosures. In between them is new circular glasswork housing the amplifier’s name badge that is adorned with a decorative trim ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe rear of the unit features 4 of our McIntosh Monogrammed Heatsinks™. Made from high quality materials with excellent thermal conductivity properties, these heatsinks are so efficient at dissipating heat that they warrant bearing the McIntosh “Mc” logo. They connect to advanced high current output transistors that eliminate thermal equilibrium lag time so that the first musical note played sounds just as good as songs played later in your listening session. \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe heatsinks are capped with handsome ventilation trim plates. These trim plates and the circular trim ring are made from aluminum and are finished to match the front panel handles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eThe MC1.25KW will drive most speakers \"with divine power and control... [and] a dynamic contrast we have never heard before.\" Highly Recommended: 6 Stars - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC125KW-Lyd-Bilde\"\u003eLyd \u0026amp; Bilde\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003eThe AC receptacle has been repositioned to provide additional clearance so a wider assortment of power cords can more easily be used. All of this sits atop a polished stainless steel chassis which rests on 4 new redesigned feet that feature a chamfered edge. Other updates include an updated power transformer, heavier gauge internal wiring, upgraded circuit components, and the addition of our power management system that will turn the amp off after a set amount of time when no input signal has been detected.\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cblockquote\u003e\n\u003cp\u003eRegardless of genre, music \"was presented with ease and a silk-smooth refinement,\" yet the MC1.25KW's \"pace, rhythm, and timing were spot on... expertly engineered, skillfully assembled, full of top-quality parts, and made of some of the best materials available... Enthusiastically recommended!\" - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC125KW-SoundStage-Ultra\"\u003eSoundStage Ultra\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eWith all the changes and improvements made in the MC1.25KW, one thing that hasn’t changed is the large, fast responding 11” (27.9 cm) blue Watt meter that accurately shows the amp’s power output. Also unchanged is the signature black glass front panel with control knobs, illuminated logo, and aluminum end caps with handles. The front panel and meter have new direct LED backlighting for improved appearance and color accuracy.\u003c\/p\u003e\n\u003cp\u003eOther exclusive McIntosh features included in the MC1.25KW include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower Guard\u003csup\u003e®\u003c\/sup\u003e that monitors and adjusts the output signal at the speed of light and makes real time adjustments to prevent harsh sounding and potentially speaker damaging clipping\u003c\/li\u003e\n\u003cli\u003eSentry Monitor™ - our fuse-less short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal\u003c\/li\u003e\n\u003cli\u003eQuad Balanced design that cancels virtually all noise and distortion that may have crept into the audio signal\u003c\/li\u003e\n\u003cli\u003ePower Control to send power on\/off signals to other connected McIntosh components (such as \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/cd-players\"\u003eCD Players\u003c\/a\u003e, \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/turntables\"\u003eturntables\u003c\/a\u003e, \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/tuners\"\u003etuners\u003c\/a\u003e and \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/media-streamers\"\u003emedia streamers\u003c\/a\u003e) for easy system power up and shutdown\u003c\/li\u003e\n\u003cli\u003eOur patented Solid Cinch™ speaker binding posts that easily but securely attach the \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/cables\/Speaker-Cables\"\u003espeaker cables\u003c\/a\u003e to prevent them from coming loose and possibly causing a short; the binding posts are also gold-plated to prevent corrosion and ensure a quality signal is sent over your speaker cables\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eBoth a balanced and unbalanced output are included to make bi-amping or tri-amping your speakers easier; they can also be used to send the audio signal to a secondary system if your \u003c\/span\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/preamplifiers\"\u003epreamplifier\u003c\/a\u003e\u003cspan\u003e does not have enough outputs or to connect a powered subwoofer.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience Ð and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon JohnsonÕs inauguration speech to Woodstock to the famous Grateful Dead ÒWall of Sound,Ó McIntosh has not only witnessed history, we have shaped it. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eXLR Input and Output, ICE Power, 12 Trigger Input and Output, 5 Way Speaker Binding Post for 2, 4 and 8 Ohm Outputs\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAmplifier, Manual and Power Cord \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e17-3\/4\" (45.09cm) x 12-5\/16\" (31.27cm) (including feet) x 22\" (55.88cm) (including the front panel and cables)\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e158 lbs (71.7 kg)\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.lbtechreviews.com\/test\/hi-fi\/mcintosh-mc1-25kw\"\u003ehttps:\/\/www.lbtechreviews.com\/test\/hi-fi\/mcintosh-mc1-25kw\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.soundstageultra.com\/index.php\/equipment-menu\/922-mcintosh-laboratory-mc125kw-mono-amplifiers#most-read-equipment-reviews\"\u003ehttps:\/\/www.soundstageultra.com\/index.php\/equipment-menu\/922-mcintosh-laboratory-mc125kw-mono-amplifiers#most-read-equipment-reviews\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc1p25kw-om-01.pdf?rev=7a1f665fc4cc4f90b1e0e5b8c295d4fc\u0026amp;revision=7a1f665f-c4cc-4f90-b1e0-e5b8c295d4fc\"\u003ehttps:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc1p25kw-om-01.pdf?rev=7a1f665fc4cc4f90b1e0e5b8c295d4fc\u0026amp;revision=7a1f665f-c4cc-4f90-b1e0-e5b8c295d4fc\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLink to Brochure:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC125KWbrochure35107400.pdf?rev=5774a229fc2c461aaa313c855a1bb673\u0026amp;revision=5774a229-fc2c-461a-aa31-3c855a1bb673\"\u003ehttps:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC125KWbrochure35107400.pdf?rev=5774a229fc2c461aaa313c855a1bb673\u0026amp;revision=5774a229-fc2c-461a-aa31-3c855a1bb673\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003ePower Output per Channel 1200 Watts @ 2, 4 or 8 Ohms\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eNumber of Channels 1\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eTotal Harmonic Distortion 0.005%\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eS\/N below rated output Balanced: 124dB Unbalanced: 120dB\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eDynamic Headroom 2.2dB\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eDamping Factor \u0026gt;40 Wideband\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eRated Power Band 20Hz to 20kHz\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFrequency Response +0, -0.25dB from 20Hz to 20,000Hz +0, -3dB from 10Hz to 100,000Hz\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960696832254,"sku":"","price":15500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc1-25kw-quad-balanced-monoblock-amplifier-single-new-897.jpg?v=1768326906"},{"product_id":"mcintosh-mc611-quad-balanced-monoblock-amplifier","title":"McIntosh MC611 Quad Balanced Monoblock Amplifier (Single) - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e600Watts @ 2, 4 or 8 Ohms\u003c\/li\u003e\n\u003cli\u003eQuad Balanced Design\u003c\/li\u003e\n\u003cli\u003eLegendary McIntosh Autoformers in Output Stage\u003c\/li\u003e\n\u003cli\u003ePower Guard and Sentry Monitor for Ultimate Protection\u003c\/li\u003e\n\u003cli\u003ePower Control to easily integrate with other McIntosh components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe monoblock MC611 Quad Balanced Power Amplifier produces 600 Watts of power – enough to satisfy nearly any loudspeaker. A pair of MC611s can easily drive an impressive home stereo system, or add more of them to power a home theater. Thanks to our unique output Autoformer\u003csup\u003e™\u003c\/sup\u003e technology, your \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/speakers\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/products\/speakers\"\u003espeakers\u003c\/a\u003e will receive the full 600 Watts regardless if they have 2, 4 or 8 Ohm impedance, allowing you the ability to use the MC611 to its full potential.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\"The MC611 is one of the most beautiful sounding amplifiers I’ve ever heard, and at the same time is one of the most realistic sounding amplifiers I’ve ever heard. And this continues to blow me away every time I turn the MC611s’ power on.\" Winner of Best of 2018 Blue Note Award. - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-Enjoy-The-Music\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-Enjoy-The-Music\"\u003eEnjoy The Musi\u003c\/a\u003eThe MC611 has received numerous updates and improvements compared to our previous 600 Watt monoblock model. Chief among them is that filter capacity has been doubled which has resulted in a dramatic 55% increase in dynamic headroom from 1.8dB to 2.8dB. This twofold increase in filter capacity also helps improve the performance of low end bass frequencies.\"The MC611s offer massive power with minimal distortion at all frequencies, into any load. In doing so they are virtually unique… Easy going silky smooth sound, richly detailed and dynamically awesome.\" Awarded 5 out of 5 Globes. - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-Hi-Fi-World\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-Hi-Fi-World\"\u003eHi-Fi World\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe front panel features new direct LED backlighting for improved appearance and color accuracy. On top, the audio Autoformer and power transformer remain seated just behind the front panel, but are now contained in new glass topped enclosures. Behind them are 2 of our Monogrammed Heatsinks\u003csup\u003e™\u003c\/sup\u003ewhich connect to advanced high current output transistors that help eliminate thermal equilibrium lag time. A screening of the amplifier’s block diagram has been added to the panel located between the heatsinks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cfigure role=\"none\" class=\"table-cell w50 vertical-middle to-load-b video-container loaded\"\u003e\u003cvideo autoplay=\"autoplay\" loop=\"loop\" muted=\"\" playsinline=\"\" poster=\"https:\/\/www.mcintoshlabs.com\/cdn-cgi\/image\/quality=90\/-\/media\/videos\/mcintoshlabs\/short---monogrammed-heatsinks02-thumbnail.jpg?rev=23b4b882b1314a3caf9ddace1bd7539b\u0026amp;revision=23b4b882-b131-4a3c-af9d-dace1bd7539b\"\u003e\u003c\/video\u003e\n\u003cfigcaption\u003eMcIntosh Monogrammed Heatsink.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\"Attack, sustain, decay came through with such clarity and power you – I – rarely hear through high-power amplifiers... Highly Recommended, A++++.\" - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-Audiophile-Style\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-Audiophile-Style\"\u003eAudiophile Style\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eOn the back, there continues to be 3 sets of our Solid Cinch\u003csup\u003e™\u003c\/sup\u003e speaker binding posts (1 set for each speaker impedance), but more space has been added between each set to allow for easier speaker cable management. Our eco-friendly power management system, which will turn the amp off after a set amount of time when no input signal has been detected, has also been added. Other enhancements include heavier gauge internal wiring and upgraded circuit components.McIntosh Solid Cinch speaker binding posts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\"A rare combination of effortless power and sophistication\" that allows it to easily \"drive almost any type of speaker.\" Highly Recommended: 6 Stars - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-Lyd-Bilde\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-Lyd-Bilde\"\u003eLyd \u0026amp; Bilde\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eIn addition to all these improvements, the MC611 is full of other exclusive McIntosh technologies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower Guard\u003csup\u003e®\u003c\/sup\u003e that monitors and adjusts the input signal at the speed of light and makes real time adjustments to prevent harsh sounding and potentially speaker damaging clipping\u003c\/li\u003e\n\u003cli\u003eSentry Monitor\u003csup\u003e™\u003c\/sup\u003e - our fuse-less short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal\u003c\/li\u003e\n\u003cli\u003eQuad Balanced design that cancels virtually all noise and distortion that may have crept into the audio signal\u003c\/li\u003e\n\u003cli\u003ePower Control to send power on\/off signals to other connected McIntosh components for easy system power up and shutdown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eBoth a balanced and unbalanced output are included to make bi-amping or tri-amping your speakers easier; they can also be used to send the audio signal to a secondary system if your \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/preamplifiers\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/products\/preamplifiers\"\u003epreamplifier\u003c\/a\u003e does not have enough outputs, or to connect a powered subwoofer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cfigure role=\"none\" class=\"table-cell w50 vertical-middle to-load-b loaded\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\u003cimg height=\"241\" width=\"448\" src=\"https:\/\/www.mcintoshlabs.com\/cdn-cgi\/image\/quality=90\/-\/media\/images\/mcintoshlabs\/products\/productimages\/mc611\/mc611-back.jpg?rev=449f19c0b85e40588bf5a0298b7494fd\u0026amp;revision=449f19c0-b85e-4058-8bf5-a0298b7494fd\" alt=\"McIntosh MC611 Amplifier\" class=\"\" data-mce-src=\"https:\/\/www.mcintoshlabs.com\/cdn-cgi\/image\/quality=90\/-\/media\/images\/mcintoshlabs\/products\/productimages\/mc611\/mc611-back.jpg?rev=449f19c0b85e40588bf5a0298b7494fd\u0026amp;revision=449f19c0-b85e-4058-8bf5-a0298b7494fd\"\u003e\u003c\/div\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\"Natural, effortless control of dynamic swings, a linear power response throughout the frequency range, a true sense of fidelity to the recorded event, a Muhammed Ali-like speed and power propelling every note, deep authentic bass and a wonderfully human and palpable midrange with an organic, yet polished aural touch.\" - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-AudioStream\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC611-AudioStream\"\u003eAudioStream\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC611 sits on a beautiful polished stainless steel chassis and features the timeless McIntosh aesthetic of a black glass front panel, illuminated logo, control knobs, aluminum handles and of course a large 8” (20.3 cm) fast responding blue Watt meter.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience Ð and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon JohnsonÕs inauguration speech to Woodstock to the famous Grateful Dead ÒWall of Sound,Ó McIntosh has not only witnessed history, we have shaped it. \u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eXLR Input and Output, ICE Power, 12 Trigger Input and Output, 5 Way Speaker Binding Post for 2, 4 and 8 Ohm Outputs\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAmplifier, Manual and Power Cord \u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnit Dimensions (W x H x D)17-1\/2\" (44.45cm) x 9-7\/16\" (23.97cm) (including\u003cbr\u003efeet) x 22\" (55.88cm) (including front panel, handles and cables)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e97.5 lbs (44.32 kg)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.enjoythemusic.com\/superioraudio\/equipment\/0718\/McIntosh_MC611_Review.htm\"\u003ehttps:\/\/www.enjoythemusic.com\/superioraudio\/equipment\/0718\/McIntosh_MC611_Review.htm\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc611om02.pdf?rev=342490fdf488469a85a569122daf90d2\u0026amp;revision=342490fd-f488-469a-85a5-69122daf90d2\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc611om02.pdf?rev=342490fdf488469a85a569122daf90d2\u0026amp;revision=342490fd-f488-469a-85a5-69122daf90d2\"\u003ehttps:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc611om02.pdf?rev=342490fdf488469a85a569122daf90d2\u0026amp;revision=342490fd-f488-469a-85a5-69122daf90d2\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLink to Brochure:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC611-brochure-35107600.pdf?rev=413ac209601c43158872c2eb781a357e\u0026amp;revision=413ac209-601c-4315-8872-c2eb781a357e\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC611-brochure-35107600.pdf?rev=413ac209601c43158872c2eb781a357e\u0026amp;revision=413ac209-601c-4315-8872-c2eb781a357e\"\u003ehttps:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC611-brochure-35107600.pdf?rev=413ac209601c43158872c2eb781a357e\u0026amp;revision=413ac209-601c-4315-8872-c2eb781a357e\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"page\" title=\"Page 2\"\u003e\n\u003cdiv class=\"section\"\u003e\n\u003cdiv class=\"layoutArea\"\u003e\n\u003cdiv class=\"column\"\u003e\n\u003cp\u003e\u003cspan\u003ePower Output: \u003c\/span\u003e\u003cspan\u003e600 Watts into a 2, 4 or 8 Ohm speaker\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTotal Harmonic Distortion: \u003c\/span\u003e\u003cspan\u003e0.005% maximum from 20Hz to 20kHz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSignal to Noise Ratio: \u003c\/span\u003e\u003cspan\u003e124dB Balanced 120dB Unbalanced\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDynamic Headroom: \u003c\/span\u003e\u003cspan\u003e2.8dB\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDamping Factor: \u003c\/span\u003e\u003cspan\u003eGreater than 40 Wideband\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFrequency Response: \u003c\/span\u003e\u003cspan\u003e+0, -0.25dB from 20Hz to 20kHz +0, -3.0dB from 10Hz to 100kHz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960696865022,"sku":"","price":9500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc611-quad-balanced-monoblock-amplifier-single-new-532.jpg?v=1684259049"},{"product_id":"mcintosh-mc451-hybrid-drive-dual-mono-amplifier","title":"McIntosh MC451 Hybrid Drive Dual Mono Amplifier (Single) - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/CES-2023-innovation-award-honoree.png?v=1680876145\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/CES-2023-innovation-award-honoree.png?v=1680876145\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Includes our Hybrid Drive™ technology that uses the best of vacuum tubes and solid state to produce the best sound performance\u003cbr data-mce-fragment=\"1\"\u003e• Designed with bi-amping loudspeakers in mind\u003cbr data-mce-fragment=\"1\"\u003e• 150 Watt vacuum tube amplifier and 300 Watt solid state amplifier on one chassis\u003cbr data-mce-fragment=\"1\"\u003e• Vacuum tube section powers mid and upper drivers\u003cbr data-mce-fragment=\"1\"\u003eSolid state section drives power hungry woofers\u003cbr data-mce-fragment=\"1\"\u003e• DualView™ Power Output Meter\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA Stunning Sound Experience.\u003c\/p\u003e\n\u003cp\u003eThe MC451 Dual Mono Amplifier joins the MC901 in offering the ultimate solution to bi-amping a loudspeaker. Like the MC901, the MC451 uses our Hybrid Drive™ technology that combines a separate vacuum tube and solid state amplifier onto one single chassis to produce the best possible sound performance from a bi-ampable speaker. Unlike the larger MC901, the MC451 has a more conventional McIntosh form factor and size, allowing it to fit into home audio systems, racks, and furniture more easily. Adding a pair of MC451s to your stereo system will allow your prized speakers to perform like never before.\u003c\/p\u003e\n\u003cp\u003eThe MC451 is comprised of a 150 Watt vacuum tube amplifier and a 300 Watt solid state amplifier, which is more than enough power to drive virtually all speakers.\u003cbr data-mce-fragment=\"1\"\u003eThe vacuum tube section drives the speaker's midranges and tweeters, while the solid state section drives the woofers. The 150 Watt vacuum tube amplifier is powered by four KT88 output tubes which are located under a removable wire cage, plus two 12AT7 and one 12AX7A signal tubes; it uses our patented Unity Coupled Circuit output transformer to deliver its full 150 Watts into almost any speaker regardless if it has 2, 4 or 8 Ohm impedance.\u003c\/p\u003e\n\u003cp\u003eSimilarly, the 300 Watt solid state amplifier delivers its full 300 Watts into a 2, 4 or 8 Ohm impedance speaker via our Autoformer™ technology.\u003c\/p\u003e\n\u003cp\u003eThe two amplifiers in the MC451 are designed to work together in a synergistic relationship and are specifically engineered to assure that each only amplifies its intended frequencies. The large but quiet toroidal transformer generates enough power so that neither amplifier robs power or performance from the other. All of this results in easy bi-amping with unparalleled performance and sound reproduction from your speakers.\u003c\/p\u003e\n\u003cp\u003eBi-amping your speakers with the MC451 is easy. No longer do you need fiddle with two separate amplifiers, an external crossover, and a lot of trial and error to properly configure the two separate amplifiers with often times only so-so results. The MC451 solves these hassles thanks to its internal, adjustable crossover. The MC451’s crossover tailors the output frequency range of each amplifier section to the attached loudspeaker. Simply set the CROSSOVER POINT knob on the back of the MC451 to the loudspeaker’s crossover point, then frequencies below the crossover point will be sent to the solid state amplifier and frequencies above it will be sent to the vacuum tube amplifier.\u003c\/p\u003e\n\u003cp\u003eThis adjustable crossover allows you to optimize the performance of both amplifier sections to your speaker's specifications and to your listening preferences. Gain levels for the vacuum tube amplifier can be adjusted from -6dB to +3dB. A direct feed can also be connected to each amplifier section, thus bypassing the internal crossover.\u003c\/p\u003e\n\u003cp\u003eThe MC451 features our DualView™ Power Output Meter. The DualView meter features two of our traditional, fast responding mechanical meters stacked above and below each other in a single meter window; one meter is dedicated to the 150 Watt vacuum tube amp and the other to the 300 Watt solid state amp. Each meter operates independently of the other and displays the real time power reading of each amplifier section.\u003c\/p\u003e\n\u003cp\u003eIn addition to everything already mentioned, the MC451 comes with a multitude of other McIntosh amplifier the technologies:\u003c\/p\u003e\n\u003cp\u003e• Power Guard® that monitors and adjusts the input signal in the 300 Watt solid state amplifier section in real time, then makes inconspicuous volume adjustments to prevent harsh sounding distortion and potential speaker damaging clipping.\u003cbr\u003e• Power Guard Screen Grid Sensor® (SGS). The 150 Watt vacuum tube amplifier section features our Power Guard SGS® technology. Power Guard SGS helps prevent premature vacuum tube failure by monitoring the screen grid current in the KT88 output vacuum tubes. If the current becomes too high, a circuit in Power Guard SGS is activated which then dynamically attenuates the input signal in real time to keep the vacuum tubes operating at safe levels.\u003cbr\u003e• Sentry Monitor™ observes the output current and shuts the amplifier off if it ever exceeds safe limits.\u003cbr\u003e• Power Control that can send power on\/off signals to other connected McIntosh components for easy system power up and shutdown.\u003cbr\u003e• Our patented, gold-plated Solid Cinch™ speaker binding posts that easily and securely attach the speaker cables.\u003cbr\u003e• A McIntosh Monogrammed Heatsink™ that is connected to advanced high current output transistors to efficiently cool the solid state amplifier section.\u003cbr\u003e• Our Power Management System that will turn the entire unit off after a set amount of time when no input signal has been detected.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe uncompromising fit and finish of the MC451 is highlighted by familiar McIntosh design cues. The front features a signature black glass faceplate with three clear windows that allow viewing of the vacuum tubes, the DualView meter, two rotary control knobs, an illuminated logo and lettering, and built-in aluminum handles. The top is highlighted by a series of block diagrams printed on glass inserts outlining the circuitry and specifications of the unit. All of this sits atop of stainless steel chassis that's been polished to a pristine mirror finish.\u003c\/p\u003e\n\u003cp\u003eThe MC451 amplifier can be combined with a variety of preamplifiers, turntables, CD players, media streamers, speakers, and other specialty products to form a complete home audio system designed for bi-amping loudspeakers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1 x MC451, Owner's Manual, Power Cord.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e17-7\/8\" (45.4cm) x 11-13\/16\" (30cm) x 21-1\/2\" (54.6cm)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e133 lbs (60.3 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.whathifi.com\/news\/mcintosh-mc451-mono-power-amp-combines-valve-and-solid-state-in-one-compact-box\" target=\"_blank\" data-mce-href=\"https:\/\/www.whathifi.com\/news\/mcintosh-mc451-mono-power-amp-combines-valve-and-solid-state-in-one-compact-box\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC451-OM-24118600.pdf?rev=73ea2c396c094e07a5224e31dd4d6756\u0026amp;revision=73ea2c39-6c09-4e07-a522-4e31dd4d6756\" title=\"McIntosh MC451 Hybrid Drive Dual Mono Amplifier on SkyFi Audio\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC451-OM-24118600.pdf?rev=73ea2c396c094e07a5224e31dd4d6756\u0026amp;revision=73ea2c39-6c09-4e07-a522-4e31dd4d6756\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" title=\"McIntosh Speaker Cables on SkyFi Audio\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" title=\"McIntosh Power Control Cables\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - ASCENT SERIES PK10 POWER CORD - NEW - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Ascent 10 Gauge Power Cord\u003c\/a\u003e - Better \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - SUMMIT SERIES PK10 PALLADIAN POWER CORD - NEW\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Palladian 10 Gauge Power Cord\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eELECTRONIC SPECIFICATIONS\u003cbr\u003ePower Output per Channel\u003cbr\u003eSolid State section: 300 Watts @ 2, 4 or 8 Ohms\u003cbr\u003eVacuum Tube section: 150 Watts @ 2, 4 or 8 Ohms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNumber of Channels\u003cbr\u003e1\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003eSolid State section: 0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz\u003cbr\u003e\u003cbr\u003eVacuum Tube section: 0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eS\/N below rated output\u003cbr\u003eSolid State section: 118dB\u003cbr\u003eVacuum Tube section: 112dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Headroom\u003cbr\u003eSolid State section: 2.5dB\u003cbr\u003eVacuum Tube section: 1.2dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003eSolid State section: \u0026gt;40\u003cbr\u003eVacuum Tube section: \u0026gt;18\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003eSolid State section: 20Hz to 20kHz\u003cbr\u003eVacuum Tube section: 20Hz to 20kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003eSolid State section:\u003cbr\u003e+0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3dB from 10Hz to 100,000Hz\u003cbr\u003e\u003cbr\u003eVacuum Tube section:\u003cbr\u003e+0, -0.5dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3dB from 10Hz to 70,000Hz\u003c\/p\u003e\n\u003cp\u003eCircuit Configuration\u003cbr\u003eSolid State section: Push-Pull Complementary\u003cbr\u003eVacuum Tube section: Unity Coupled\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCircuit Design\u003cbr\u003eSolid State and Vacuum Tube\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Bridge\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Parallel\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Type\u003cbr\u003eSolid State section: Autoformer™\u003cbr\u003eVacuum Tube section: Unity Coupled Output Transformer\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeters\u003cbr\u003eDualView™ Power Output Meter\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeter Light Switch\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced Input\u003cbr\u003e2 (1 Solid State or Mono, 1 Vacuum Tube)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFront Panel\u003cbr\u003eGlass\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIllumination\u003cbr\u003eDirect LED\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eChassis Style\u003cbr\u003ePolished stainless steel \u0026amp; black painted steel\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960696897790,"sku":"842548112698","price":16000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc451-hybrid-drive-dual-mono-amplifier-single-new-111.jpg?v=1777325765"},{"product_id":"mcintosh-mc3500-mk-ii-tube-monoblock-amplifier","title":"McIntosh MC3500 MK II Tube Monoblock Amplifier (Single) - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOutstanding Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e350 Watt Monoblock\u003c\/li\u003e\n\u003cli\u003eInspired by the original 1968-71 MC3500 – the Amplifier that Inspired a Generation\u003c\/li\u003e\n\u003cli\u003ePowered by eight EL509S high-power output vacuum tubes\u003c\/li\u003e\n\u003cli\u003ePower Guard Screen Grid Sensor™, Sentry Monitor, Solid Cinch speaker binding posts\u003c\/li\u003e\n\u003cli\u003eMachined aluminum front panel with a bead blast finish and gold anodizing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThere's no denying the historic significance of the 1969 Woodstock Music and Art Fair. There had never been anything like it, and many would argue there's not been anything like it since. With an unexpected crowd of over 400,000 people, there was a lot that could have gone wrong – and some things did. But one aspect that's nearly universally agreed upon was how great all the musicians sounded. That sound quality is thanks in part to the McIntosh MC3500 Vacuum Tube Amplifiers that exclusively powered the sound system used at Woodstock.\u003csup\u003e1\u003c\/sup\u003e The MC3500 would go on to power many other influential music events.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cfigure class=\"table-cell w50 vertical-middle to-load-b loaded\" role=\"none\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigcaption\u003eA new MC3500 Mk II (left) with an original MC3500.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table Left\"\u003e\n\u003cfigure class=\"table-cell w50 vertical-middle to-load-b loaded\" role=\"none\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\u003cimg class=\"\" alt=\"McIntosh MC3500 Vacuum Tube Amplifier\" src=\"https:\/\/www.mcintoshlabs.com\/cdn-cgi\/image\/quality=90\/-\/media\/images\/mcintoshlabs\/products\/productimages\/mc3500-mk-ii\/mc3500-mk-i.jpg?rev=b623fd8082634275b3fa472477f2faec\u0026amp;revision=b623fd80-8263-4275-b3fa-472477f2faec\" width=\"395\" height=\"395\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigcaption\u003eOne of the original McIntosh MC3500 amplifiers that was used at Woodstock displayed at the Bethel Woods Center for the Arts.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 loaded\"\u003e\n\u003cp\u003eIt was at a 2019 event to celebrate the 50th Anniversary of Woodstock where McIntosh President Charlie Randall, realizing the historical importance of the MC3500, first dreamed of bringing it back into production. That proved no easy task considering it was first designed over 50 years ago. But after more than two years of development, that dream has become reality as McIntosh is proud to announce the MC3500 Vacuum Tube Amplifier Mk II.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC3500 Vacuum Tube Amplifier Mk II is a conservatively rated 350 Watt monoblock that takes its inspiration from the original 1968-71 MC3500 and incorporates everything we have learned about vacuum tube amplifier design since the 1960s. It has been upgraded to modern standards and with modern components to deliver an audio performance worthy of its predecessor and the legacy of their shared model number – all while adhering to the original design as much as possible. Like the original MC3500, the MC3500 Mk II uses our Unity Coupled Circuit output transformer, which allows the full 350 Watts to be safely delivered to virtually any speaker regardless if it has 2, 4 or 8-Ohm impedance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cfigure class=\"table-cell w50 vertical-middle to-load-b loaded\" role=\"none\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\u003cimg class=\"\" alt=\"McIntosh MC3500 Vacuum Tube Amplifier Mk II\" src=\"https:\/\/www.mcintoshlabs.com\/cdn-cgi\/image\/quality=90\/-\/media\/images\/mcintoshlabs\/products\/productimages\/mc3500-mk-ii\/mc3500-mk-ii-hero.jpg?rev=20b6ac5661354fd7957f07d0121505ba\u0026amp;revision=20b6ac56-6135-4fd7-957f-07d0121505ba\" width=\"435\" height=\"290\"\u003e\u003c\/div\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC3500 Mk II is powered by eight EL509S high-power output vacuum tubes. The EL509S tube was chosen specifically due to it having many similar qualities and characteristics of the 6LQ6 \"sweep tubes\" used on the original MC3500. Like the 6LQ6, the EL509S is very rugged thanks to its robust cathode and associated heating element which produces a high peak plate current capability in excess of 1 Amp.Sweep tubes like the original 6LQ6 were primarily designed for 1950-60s era TVs where they would sweep the cathode ray gun in the picture tube across the phosphor screen. This was a very power-hungry process that required these high-powered sweep tubes. The use of sweep tubes by McIntosh engineers in the original MC3500 amplifier was a very cool and innovative application. By using the high-power EL509S vacuum tubes, the MC3500 Mk II amplifier remains as faithful as possible to original MC3500 output design. In addition, just like in the original MC3500, the MC3500 Mk II uses an additional feedback loop to enhance the linearity of the output tubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cfigure class=\"table-cell w50 vertical-middle to-load-b loaded\" role=\"none\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\u003cimg class=\"\" alt=\"McIntosh MC3500 Vacuum Tube Amplifier Mk II\" src=\"https:\/\/www.mcintoshlabs.com\/cdn-cgi\/image\/quality=90\/-\/media\/images\/mcintoshlabs\/products\/productimages\/mc3500-mk-ii\/mc3500-mk-ii-back-angle-background2.jpg?rev=212f504f63da469280169858c7e2781e\u0026amp;revision=212f504f-63da-4692-8016-9858c7e2781e\" width=\"462\" height=\"308\"\u003e\u003c\/div\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eLike the original MC3500, the MC3500 Mk II has a fully balanced driver section that utilizes three 12AX7A and one 12AT7 vacuum tubes. The first 12AX7A is the differential input amp; the second is the buffer\/driver for the voltage amp; the third is the voltage amp. The 12AT7 is the buffer\/driver for the EL509S output tubes. All the vacuum tubes are located behind the power and output transformers, and are covered by a 12-gauge stainless steel wire cage with a black powder coated finish. The cage is shaped so that our patented, gold-plated Solid Cinch\u003csup\u003e™\u003c\/sup\u003e speaker binding posts are easily accessible even when the cage is installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table Right\"\u003e\n\u003cfigure class=\"table-cell w50 vertical-middle to-load-b loaded\" role=\"none\"\u003e\n\u003cdiv class=\"d-ib\"\u003eOur exclusive Power Guard Screen Grid Sensor\u003csup\u003e™\u003c\/sup\u003e (SGS) technology is included in the MC3500 Mk II. Power Guard SGS is designed specifically for our vacuum tube amplifiers and similar in nature to our patented Power Guard\u003csup\u003e®\u003c\/sup\u003e technology found in our solid-state amplifiers. Power Guard SGS helps prevent premature vacuum tube failure by monitoring the screen grid current in the output vacuum tubes. If the current becomes too high, a circuit in Power Guard SGS is activated which dynamically attenuates the input signal in real time to keep the vacuum tubes operating at safe levels. The fully balanced driver section of the MC3500 MK II is an ideal match to use with Power Guard SGS. Sentry Monitor\u003csup\u003e™\u003c\/sup\u003e, which observes the output current and shuts the amplifier off if it ever exceeds safe limits, is also included.\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/figure\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 loaded\"\u003e\n\u003cp\u003eBoth a balanced and unbalanced input are included for connecting to your preamplifier and the rest of your home audio system. A balanced and unbalanced output are also included for multi-amp configurations, such as bi-amping or tri-amping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eJust as the original MC3500 did, the Mk II version has an output meter, though it's larger and centered on the front panel instead of offset to the left side. This makes the meter easier to read and presents a symmetrical look in a typical two-channel stereo system layout. The meter uses a variation of our DualView\u003csup\u003e™\u003c\/sup\u003e Power Output Meter design, with the top scale showing the power output in both Watts and decibels, while the bottom scale shows the amplifier warmup time. When powered on, the meter starts to slowly rise; once it reaches 100%, it drops back down to zero and the amplifier is ready to play music.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC3500 Mk II has handles just like the original, but they have more ergonomic design that are friendlier on your hands when moving this 121 lb. (54.9 kg) heavyweight. The base of the chassis is stainless steel polished to a mirror finish. The front panel is machined aluminum with a bead blast finish and gold anodizing that emulates the look and finish of the original MC3500. A clear glass insert covers the meter; a black glass insert at the bottom houses the knobs and illuminated lettering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cfigure class=\"table-cell w50 vertical-middle to-load-b loaded\" role=\"none\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\n\u003cdiv class=\"d-ib\"\u003eAs an homage to the look of the original MC3500, the Mk II features two U-shaped siderails that wrap around the top, back, and bottom of each side. Many of original MC3500s were used on the road a lot and these siderails provided a lot of strength and durability. It is a very unique design element that we wanted to duplicate in the MC3500 Mk II. There were also four black rubber bumpers on the back of the rails that allowed the amp to be temporarily stood upright while setting up for shows; the bumpers were big enough to prevent any parts sticking off the back of the amplifier from scraping against the floor and being damaged. These bumpers have also been replicated on the MC3500 Mk II.\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cfigure class=\"table-cell w50 vertical-middle to-load-b loaded\" role=\"none\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\u003cimg class=\"\" alt=\"McIntosh MC3500 Vacuum Tube Amplifier Mk II\" src=\"https:\/\/www.mcintoshlabs.com\/cdn-cgi\/image\/quality=90\/-\/media\/images\/mcintoshlabs\/products\/productimages\/mc3500-mk-ii\/mc3500-mk-ii-back-angle-cage-background1.jpg?rev=24f1e17d9fde4369908d8897e9b67d42\u0026amp;revision=24f1e17d-9fde-4369-908d-8897e9b67d42\" width=\"482\" height=\"321\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigcaption\u003eShown are the U-shaped siderails and black bumpers, along with the wire cage installed over the vacuum tubes.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC3500 Mk II is both a thoroughly modern and thoroughly retro amplifier. It's inspired by the amplifier that helped inspire a generation. You can combine with a variety of components to form a complete home audio system. \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience Ð and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon JohnsonÕs inauguration speech to Woodstock to the famous Grateful Dead ÒWall of Sound,Ó McIntosh has not only witnessed history, we have shaped it. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eXLR Input and Output, ICE Power, 12 Trigger Input and Output, 5 Way Speaker Binding Post for 2, 4 and 8 Ohm Outputs\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAmplifier, Tube Cage, Power Cord, Tube Set and Manual\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e18\" (45.7cm) x 11-13\/16\" (30cm) x 21-5\/8\" (54.9cm)\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e121 lbs (54.9 kg)\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.whathifi.com\/reviews\/mcintosh-mc3500-mkiic12000stc12000c-review\"\u003ehttps:\/\/www.whathifi.com\/reviews\/mcintosh-mc3500-mkiic12000stc12000c-review\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC3500-OM-24113800.pdf?rev=7730751189d44212825a4af22774dac5\u0026amp;revision=77307511-89d4-4212-825a-4af22774dac5\"\u003ehttps:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC3500-OM-24113800.pdf?rev=7730751189d44212825a4af22774dac5\u0026amp;revision=77307511-89d4-4212-825a-4af22774dac5\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLink to Brochure:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC3500-Mk-II-brochure-35111800.pdf?rev=8d0d74d959724e92b13cc124ab286302\u0026amp;revision=8d0d74d9-5972-4e92-b13c-c124ab286302\"\u003ehttps:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC3500-Mk-II-brochure-35111800.pdf?rev=8d0d74d959724e92b13cc124ab286302\u0026amp;revision=8d0d74d9-5972-4e92-b13c-c124ab286302\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" title=\"McIntosh Speaker Cables on SkyFi Audio\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" title=\"McIntosh Power Control Cables\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eCircuit Configuration Unity Coupled\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eCircuit Design Vacuum Tube\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMono Bridge No\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMono Parallel No\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eOutput Type Unity Coupled Output Transformer\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMeters Yes\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMeter Light Switch Yes\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eBalanced Input Yes\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFront Panel Machined aluminum with handles\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eIllumination Direct LED\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eChassis Style Polished stainless steel\u003c\/dt\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e  \u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e\n\u003cstyle\u003e\u003c\/style\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960696963326,"sku":"","price":17500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc3500-mk-ii-tube-monoblock-amplifier-single-new-619.jpg?v=1684258955"},{"product_id":"mcintosh-mc2301-quad-balanced-tube-monoblock-amplifier","title":"McIntosh MC2301 Quad Balanced Tube Monoblock Amplifier (Single) - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 300 Watt Quad Balanced Monoblock\u003cbr\u003e• Vacuum tube powered\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFrom the demands of massed chorale to full-on rock and roll, the MC2301 delivers the most extraordinarily lifelike and dynamic performance ever heard from a McIntosh tube amplifier.\u003c\/p\u003e\n\u003cp\u003eWith an output of 300 Watts, it provides enough high power to drive even the most demanding loudspeaker. And thanks to our patented Unity Coupled Circuit output transformer, this full 300 Watts is available to 2, 4 or 8 Ohm speakers.\u003c\/p\u003e\n\u003cp\u003eThe MC2301 is the first McIntosh vacuum tube amplifier to use our Quad Balanced design. This design cancels virtually all noise and distortion in the audio signal. As a result, even when amplified to high levels the signal is effectively free of any distortion.\u003c\/p\u003e\n\u003cp\u003eOur fuse-less short-circuit protection circuit Sentry Monitor™ disengages the output stage before current exceeds safe operating levels and then resets automatically. Inputs for balanced and unbalanced cables are available to provide flexibility in connecting the rest of your audio system.\u003c\/p\u003e\n\u003cp\u003eThe attractive blue meter is flanked by two rows of output vacuum tubes that bring even more visual appeal to the front panel to go along with the knobs and brushed aluminum handles that all effortlessly blend with the polished stainless steel chassis.\u003c\/p\u003e\n\u003cp\u003eThe MC2301 is well suited for stereo music systems. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMC2301, Owner's Manual, Power Cord.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e17-3\/4\" (45.09cm) x 12-5\/16\" (31.27cm) (including feet) x 23\" (58.42cm) (including front panel and cables)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e116 lbs (52.6 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/ReviewAwardDocuments\/BestBuysHomeTheatre.pdf?rev=2b3b6899cafb43a49dae8af7cae75dc3\u0026amp;revision=2b3b6899-cafb-43a4-9dae-8af7cae75dc3\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc2301om03L.pdf?rev=aadbe6d2cb944a48966ab6f3edf01f8c\u0026amp;revision=aadbe6d2-cb94-4a48-966a-b6f3edf01f8c\" title=\"MC2301 Power Amplifier Owner's Manual on SkyFi Audio\" target=\"_blank\"\u003eMC2301 Power Amplifier Owner's Manual\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" title=\"McIntosh Speaker Cables on SkyFi Audio\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" title=\"McIntosh Power Control Cables\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" title=\"KIMBER KABLE - ASCENT SERIES PK10 POWER CORD - NEW - SkyFi Audio\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\"\u003eKimber Kable - Ascent 10 Gauge Power Cord\u003c\/a\u003e - Better \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" title=\"KIMBER KABLE - SUMMIT SERIES PK10 PALLADIAN POWER CORD - NEW\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\"\u003eKimber Kable - Palladian 10 Gauge Power Cord\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eELECTRONIC SPECIFICATIONS\u003cbr\u003ePower Output per Channel\u003cbr\u003e300W @ 2, 4 or 8 Ohms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNumber of Channels\u003cbr\u003e1\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003e0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz\u003cbr\u003e(≤ 0.25% harmonic distortion at 1kHz)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eS\/N below rated output\u003cbr\u003e117dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Headroom\u003cbr\u003e1.2dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003e\u0026gt;15 Wideband\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003e20Hz to 20kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003e+0, -0.5dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3.0dB from 10Hz to 100,000Hz\u003c\/p\u003e\n\u003cp\u003eGENERAL SPECIFICATIONS\u003cbr\u003eCircuit Configuration\u003cbr\u003eQuad Balanced, Unity Coupled\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCircuit Design\u003cbr\u003eVacuum Tube\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Bridge\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Parallel\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Type\u003cbr\u003eUnity Coupled Output Transformer\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeters\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeter Light Switch\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced Input\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFront Panel\u003cbr\u003e1\/2\" Glass with handles\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIllumination\u003cbr\u003eLED Fiber Optic\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eChassis Style\u003cbr\u003eOpen Stainless Steel\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960697028862,"sku":"","price":15500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc2301-quad-balanced-tube-monoblock-amplifier-single-new-488.jpg?v=1687383847"},{"product_id":"mcintosh-mc462-quad-balanced-solid-state-amplifier","title":"McIntosh MC462 Quad Balanced Solid State Amplifier - New","description":"\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 450 Watts x 2 Channels\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003e66% increase in Dynamic Headroom compared to previous model\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eQuad Balanced Design with McIntosh Autoformers™\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eExperience stereo bliss with the MC462 Amplifier. The MC462 replaces the highly regarded MC452 as our most powerful stereo amplifier. Like the MC452, it features a robust output of 450 Watts per channel. With a dedicated McIntosh Autoformer™ connected to each audio channel, the full 450 Watts is available to any speaker regardless if it has 2, 4 or 8 Ohm impedance. Just one MC462 Amplifier can single-handedly power a world class home audio stereo system.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\"An extraordinarily well-engineered, exceptionally powerful amplifier... Highly recommended – insisted on, even.\" - Stereophile\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"888\" height=\"500\" src=\"https:\/\/www.youtube.com\/embed\/IK4w_TrLjUc?\u0026amp;autoplay=1\u0026amp;mute=1\" title=\"MC462 Quad Balanced Stereo Amplifier\"\u003e\u003c\/iframe\u003e\u003cem\u003e\u003cstrong\u003eThe C53\/MC462 combo sounded \"super-smooth and superbly balanced at all times, whilst never letting the smoothness of their delivery interfere with their ability to resolve a level of detail, [which] means you will hear nuances you just will not hear with lesser amplifiers.\" - Audio Esoterica\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe new generation MC462 stereo amplifier has received numerous updates compared to the previous model. The most prominent is that filter capacity has been increased by nearly 50%, which has resulted in a remarkable 66% increase in dynamic headroom from 1.8dB to 3.0dB. This allows the MC462 to easily handle drastic swings in dynamics and effortlessly reproduce your favorite music with virtually no distortion. Bass performance is also improved as a result of the filter capacity increase. Our eco-friendly power management system, which will turn the amplifier off after a set amount of time when no input signal has been detected, has been added. Internal wiring and select circuit components have also been upgraded.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\"A great amplifier not only in size but also in performance, capable of a refinement unthinkable for a beast of over 115 lbs (50 kg).\" - Fedelta del Suono\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAesthetically, the MC462 retains all the hallmarks of a McIntosh amplifier with a few key modern enhancements. The front panel now utilizes direct LED backlighting that improves appearance and color accuracy. The two audio Autoformers and single power transformer are housed in new enclosures topped by a single machined cover with glass inserts. The back half of the amplifier is home to four of our Monogrammed Heatsinks™ which connect to advanced high current output transistors that help eliminate thermal equilibrium lag time.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe MC462 Amplifier and C53 Preamplifier named 2021 \"Stereo Pre-Power Amplifiers of the Year Over AU$20,000.\" - Sound+Image\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eBesides these updates, the MC462 is packed full of other exclusive McIntosh technologies to bring your music to life:\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e• Power Guard® that monitors and adjusts the input signal at the speed of light and makes real time adjustments to prevent harsh sounding and potentially speaker damaging clipping\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eSentry Monitor™ - our fuse-less short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eQuad Balanced design that cancels virtually all noise and distortion that may have crept into the audio signal\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003ePower Control to send power on\/off signals to other connected McIntosh components (such as CD Players, turntables, tuners and media streamers) for easy system power up and shutdown\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eOur patented Solid Cinch™ speaker binding posts that easily but securely attach the speaker cables to prevent them from coming loose and possibly causing a short; the binding posts are also gold-plated to prevent corrosion and ensure a quality signal is sent over your speaker cables\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\"It does everything right and nothing wrong, is built to last for generations, and sounds amazing no matter what speakers you connect to it.\" - Lyd \u0026amp; Bilde\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe balanced and unbalanced outputs make bi-amping or tri-amping your speakers easier; they can also be used to send the audio signal to a secondary system if your preamplifier does not have enough outputs, or to connect a powered subwoofer. The MC462 sits on a beautiful polished stainless steel chassis and features the timeless McIntosh black glass front panel, illuminated logo, control knobs, aluminum handles and a pair of fast responding blue Watt meters.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMC462, Owner's Manual, Power Cord\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e17-1\/2\" (44.45cm) x 9-7\/16\" (23.97cm) (including feet) x 22-1\/2\" (57.2cm) (including front panel, handles and cables)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e115 lbs (52.3 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/ReviewAwardDocuments\/MC462-Fedelta-del-Suono-October-2020-No-296.pdf?rev=4a972ad4443a407f8fc6f03382b2fe10\u0026amp;revision=4a972ad4-443a-407f-8fc6-f03382b2fe10\"\u003eMC462 Review Fedelta del Suono (Italy) October 2020 No 296\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.lydogbilde.no\/test\/hi-fi\/mcintosh-mc462\" target=\"_blank\"\u003eMC462 Review Lyd and Bilde January 2019\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.stereophile.com\/content\/mcintosh-laboratory-mc462-power-amplifier\" target=\"_blank\"\u003eMC462 Review Stereophile May 2019\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/ReviewAwardDocuments\/MC462-and-C53-Audio-Esoterica-Issue-1-2020.pdf?rev=8aac858d03174affb552ff674708dd74\u0026amp;revision=8aac858d-0317-4aff-b552-ff674708dd74\"\u003eMC462 and C53 Review Audio Esoterica (Australia) Issue #1-2020\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc462om01.pdf?rev=aef507ce39d24889b066924f7adc16a9\u0026amp;revision=aef507ce-39d2-4889-b066-924f7adc16a9\" title=\"McIntosh MC462 Quad Balanced Solid State Amplifier on SkyFi Audio\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - ASCENT SERIES PK10 POWER CORD - NEW - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Ascent 10 Gauge Power Cord\u003c\/a\u003e - Better \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - SUMMIT SERIES PK10 PALLADIAN POWER CORD - NEW\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Palladian 10 Gauge Power Cord\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eELECTRONIC SPECIFICATIONS\u003cbr\u003ePower Output per Channel\u003cbr\u003e450 Watts @ 2, 4 or 8 Ohms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNumber of Channels\u003cbr\u003e2\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003e0.005%\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eS\/N below rated output\u003cbr\u003e122dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Headroom\u003cbr\u003e3.0dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003e\u0026gt;40 Wideband\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003e20Hz to 20kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003e+0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3.0dB from 10Hz to 100,000Hz\u003c\/p\u003e\n\u003cp\u003eGENERAL SPECIFICATIONS\u003cbr\u003eCircuit Configuration\u003cbr\u003eQuad Balanced\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCircuit Design\u003cbr\u003eSolid State\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Bridge\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Parallel\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Type\u003cbr\u003eAutoformer™\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeters\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeter Light Switch\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced Input\u003cbr\u003e2\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFront Panel\u003cbr\u003eGlass with handles\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIllumination\u003cbr\u003eDirect LED\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eChassis Style\u003cbr\u003ePolished stainless steel \u0026amp; black painted steel\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960697061630,"sku":"","price":11500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc462-quad-balanced-solid-state-amplifier-new-731.jpg?v=1776450837"},{"product_id":"mcintosh-mc312-solid-state-amplifier-new","title":"McIntosh MC312 Solid State Amplifier - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 300 Watts x 2 Channels\u003cbr\u003e• McIntosh Autoformers\u003cmeta charset=\"UTF-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e™\u003c\/span\u003e\u003cbr\u003e• \u003cem\u003e\u003c\/em\u003e27% increase in Dynamic Headroom compared to previous model\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePrepare yourself for years and years of musical enjoyment with the MC312 Power Amplifier. A 300 Watt per channel stereo amplifier, the MC312 is a great choice to power virtually any home audio system. The full 300 Watts can be delivered to almost any speakers regardless if they have 2, 4 or 8 Ohm impedance thanks to our unique Autoformer™ technology.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cem\u003e\u003cstrong\u003eNamed \u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC312-Secrets-of-Home-Theater-and-High-Fidelity-Best-Of-Award\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC312-Secrets-of-Home-Theater-and-High-Fidelity-Best-Of-Award\"\u003eBest Stereo Power Amplifier of 2019\u003c\/a\u003e by Secrets of Home Theater and High Fidelity. \"This just may be all the amplifier you will ever need!\"\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe MC312 has received numerous improvements compared to our previous 300 Watt stereo amplifier. Most notably is that filter capacity has been doubled, which increases dynamic headroom an impressive 27% from 1.8dB to 2.3dB. This increase means the MC312 will be even better suited to handle wide dynamic swings in your music. Distortion prevention and bass performance also benefit from the increased filter capacity.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cem\u003e\u003cstrong\u003e\"A component that makes you want to listen to as much music as possible, such as the MC312, is what it is all about... It is perhaps the finest, most sophisticated amplifier I have heard in its price range in my system.\" - \u003ca data-mce-fragment=\"1\" href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC312-NOVO\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC312-NOVO\"\u003eNOVO Magazine\u003c\/a\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWhile still looking very much like a McIntosh, the MC312 has received some key design updates. Direct LED backlighting now illuminates the front panel for improved color accuracy. The audio output Autoformers still straddle the power transformer, but are now located in new enclosures that are capped by a single cover containing glass inserts that show the wiring diagram for each transformer.\u003c\/p\u003e\n\u003cp\u003e\"When the hairs on your arms rise during a listening session, and you get a huge grin \u003cem\u003e\u003cstrong\u003eon your face, you know that (a) you're having a tremendous amount of fun, and (b) you're listening to true reference-quality equipment.\" - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC312-Secrets-of-Home-Theater-and-High-Fidelity\" target=\"_blank\"\u003eSecrets of Home Theater and High Fidelity\u003c\/a\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eOther updates include the addition of our Monogrammed Heatsinks™ and our eco-friendly power management system. Numerous circuit components and internal wiring have also been upgraded. Balanced and unbalanced outputs have been added to enable bi-amping or tri-amping your speakers; they can also be used to connect to a secondary system if your preamplifier doesn’t have enough connections, or to connect a powered subwoofer.\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003e\u003cstrong\u003eThe MC312 is packed full of other exclusive McIntosh technologies:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower Guard\u003csup\u003e®\u003c\/sup\u003e that monitors and adjusts the input signal at the speed of light and makes real time adjustments to prevent harsh sounding and potentially \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/speakers\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/products\/speakers\"\u003espeaker\u003c\/a\u003e damaging clipping\u003c\/li\u003e\n\u003cli\u003eSentry Monitor\u003csup\u003e™\u003c\/sup\u003e - our fuse-less short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal\u003c\/li\u003e\n\u003cli\u003ePower Control to send power on\/off signals to other connected McIntosh components (such as \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/cd-players\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/products\/cd-players\"\u003eCD Players\u003c\/a\u003e, \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/turntables\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/products\/turntables\"\u003eturntables\u003c\/a\u003e, \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/tuners\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/products\/tuners\"\u003etuners\u003c\/a\u003e and \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/media-streamers\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/products\/media-streamers\"\u003emedia streamers\u003c\/a\u003e) for easy system power up and shutdown\u003c\/li\u003e\n\u003cli\u003eOur patented Solid Cinch\u003csup\u003e™\u003c\/sup\u003e speaker binding posts that easily but securely attach the \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/cables\/Speaker-Cables\" data-mce-href=\"https:\/\/www.mcintoshlabs.com\/products\/cables\/Speaker-Cables\"\u003espeaker cables\u003c\/a\u003e to prevent them from coming loose and possibly causing a short; the binding posts are also gold-plated to prevent corrosion and ensure a quality signal is sent over your speaker cables\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe MC312 sits on a beautiful polished stainless steel chassis and features the timeless McIntosh black glass front panel, illuminated logo, control knobs, aluminum end caps and a pair of fast responding blue Watt meters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003cbr\u003e\u003cbr\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc312om01.pdf?rev=1306faa80f6047f78b9c3ac1057e52c6\u0026amp;revision=1306faa8-0f60-47f7-8b9c-3ac1057e52c6\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" title=\"McIntosh Speaker Cables on SkyFi Audio\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" title=\"McIntosh Power Control Cables\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"accordion\"\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003ePower Output per Channel \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e300 Watts @ 2, 4 or 8 Ohms\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eNumber of Channels \u003c\/span\u003e2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"accordion\"\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eTotal Harmonic Distortion \u003c\/span\u003e0.005%\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eS\/N below rated output \u003c\/span\u003eBalanced: 120dB\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eUnbalanced: 118dB \u003c\/span\u003eDynamic Headroom 2.3dB\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eDamping Factor \u003c\/span\u003e\u0026gt;40 Wideband\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eRated Power Band \u003c\/span\u003e20Hz to 20kHz\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eFrequency Response \u003c\/span\u003e+0, -0.25dB from 20Hz to 20,000Hz +0, -3.0dB from 10Hz to 100,000Hz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eCONTROL\u003c\/span\u003e\u003cbr\u003e\n\u003cul class=\"accordion\"\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eRemote Power Control \u003c\/span\u003eYes\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eMulti-Channel DB25 Cable \u003c\/span\u003eN\/A\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eCONNECTIVITY\u003c\/span\u003e\u003cbr\u003e\n\u003cul class=\"accordion\"\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eSpeaker Binding Post Type \u003c\/span\u003ePatented Solid Cinch™ Speaker Binding Posts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eGENERAL SPECIFICATIONS\u003c\/span\u003e\u003cbr\u003e\n\u003cul class=\"accordion\"\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eCircuit Configuration \u003c\/span\u003ePush-Pull Complementary\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eCircuit Design \u003c\/span\u003eSolid State\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eMono Bridge \u003c\/span\u003eNo\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eMono Parallel \u003c\/span\u003eNo\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eOutput Type \u003c\/span\u003eAutoformer™\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eMeters \u003c\/span\u003eYes\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eMeter Light Switch \u003c\/span\u003eYes\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eBalanced Input \u003c\/span\u003e2\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eFront Panel \u003c\/span\u003eGlass\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eIllumination \u003c\/span\u003eDirect LED\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eChassis Style \u003c\/span\u003ePolished stainless steel \u0026amp; black painted steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eWEIGHTS \u0026amp; DIMENSIONS\u003c\/span\u003e\u003cbr\u003e\n\u003cul class=\"accordion\"\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eUnit Dimensions (W x H x D)\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003e17-1\/2\" (44.45cm) x 9-7\/16\" (23.97cm) (including feet) x 22\" (55.88cm) (including front panel, handles and cables)\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eUnit Weight\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003e105 lbs (47.63 kg)\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 0.875rem;\"\u003eShipping Weight\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\u003c\/ul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e138 lbs (62.59 kg)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"accordion\"\u003e\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e  \u003c\/div\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960697094398,"sku":null,"price":8500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc312-solid-state-amplifier-new-580.webp?v=1763032386"},{"product_id":"mcintosh-mc152-solid-state-amplifier-new","title":"McIntosh MC152 Solid State Amplifier - NEW","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 150 Watts x 2 Channels\u003cbr\u003e• McIntosh Patented Autoformers and Sentry Monitor\u003cbr\u003e• Space saving 6\" tall chassis\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003eGeneral:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe McIntosh MC152 stereo amplifier delivers 150 Watts of power into two channels at 2, 4 or 8 Ohms. Both balanced and unbalanced inputs are included for connecting your preamplifier. Our smallest current model solid state stereo amplifier in terms of power output, the MC152 is perfect for modest sized systems where higher power output levels are not needed or in home theaters to power surround channels.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003e\"Best Amplifier\" 2015 - Hi-Fi World\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeaturing a space saving design with a slim 6” tall chassis, it can fit where larger models can’t. While it may be physically smaller than our other amplifiers, it's still full of all the technology McIntosh is known for and will perform to the same high standards as any of our amps. The McIntosh output Autoformer™ ensures every speaker receives full power regardless of its impedance while our unique Power Guard® circuitry prevents clipping that could damage your speakers. Our speaker binding posts provide a secure connection to your speaker cables.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003e\"It was the combination of power, control and overall coherence that made the McIntosh work so well with seemingly all musical genres… It can be subtle and fleet-of-foot when needed – yet is just at home pounding out deep bass lines, crashing guitar chords or orchestral crescendos. Not just a cut-down version of McIntosh’s bigger power amplifiers but a great performer in its own right.\" Awarded 5 out of 5 Globes. - Hi-Fi World\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe MC152 is completed by the classic McIntosh black glass front panel, silver end caps and a pair of large, easy to read blue watt meters that are globally recognized as a symbol of quality audio. Bring the MC152 home today and introduce your friends and family to the performance only McIntosh can deliver.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced (XLR) and unbalanced (RCA) inputs, McIntosh New Style Speaker Binding Posts, Power Control In\/Out.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMC152 Amplifier, Owner's Manual, Power Cord, McIntosh Carton.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e17-1\/2\" (44.45cm) x 6\" (15.24cm) (including feet) x 21\" (50.8cm) (including front panel and cables)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e75 lbs (34 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title='McIntosh MC152 Named \"Best Amplifier\" by Hi-Fi World on SkyFi Audio' href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC152-Hi-Fi-World-award\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"MC152 2-Channel Solid State Amplifier Owner's Manual on SkyFi Audio\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc152om01.pdf?revision=f03617ac-3892-44c1-9725-5f118e6dded8\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable Power Cords\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePower Output\u003cbr\u003eMinimum sine wave continuous average power output per channel, with both channels operating is:\u003cbr\u003e150 watts into 2 ohm load\u003cbr\u003e150 watts into 4 ohm load\u003cbr\u003e150 watts into 8 ohm load\u003cbr\u003e\u003cbr\u003eOutput Load Impedance\u003cbr\u003e2, 4 or 8 ohms\u003cbr\u003e\u003cbr\u003eRated Power Band\u003cbr\u003e20Hz to 20,000Hz\u003cbr\u003e\u003cbr\u003eTotal Harmonic Distortion\u003cbr\u003e0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz\u003cbr\u003e\u003cbr\u003eDynamic Headroom\u003cbr\u003e2dB\u003cbr\u003e\u003cbr\u003eFrequency Response\u003cbr\u003e+0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3.0dB from 10Hz to 100,000Hz\u003cbr\u003e\u003cbr\u003eInput Sensitivity (for rated output)\u003cbr\u003e2.4 Volts Balanced\u003cbr\u003e1.2 Volts Unbalanced\u003cbr\u003e\u003cbr\u003eSignal To Noise Ratio (A-Weighted)\u003cbr\u003e95dB Balanced (118dB below rated output)\u003cbr\u003e93dB Unbalanced (115dB below rated output)\u003cbr\u003e\u003cbr\u003eIntermodulation Distortion\u003cbr\u003e0.005% maximum, if the instantaneous peak power output does not exceed twice the rated power output for any combination of frequencies from 20Hz to 20,000Hz.\u003cbr\u003e\u003cbr\u003eWide Band Damping Factor\u003cbr\u003eGreater than 40\u003cbr\u003e\u003cbr\u003eInput Impedance\u003cbr\u003e22,000 ohms Balanced\u003cbr\u003e22,000 ohms Unbalanced\u003cbr\u003e\u003cbr\u003eVoltage Gain\u003cbr\u003e23dB, 2 Ohms\u003cbr\u003e26dB, 4 Ohms\u003cbr\u003e29dB, 8 Ohms\u003cbr\u003e\u003cbr\u003ePower Guard\u003cbr\u003eLess than 2% Total Harmonic Distortion with up to a 14dB overdrive signal\u003cbr\u003e\u003cbr\u003ePower Control Input\u003cbr\u003e5-15VDC, less than 1mA\u003cbr\u003e\u003cbr\u003ePower Control Output\u003cbr\u003e12VDC, 50mA maximum\u003cbr\u003eOutput is delayed 0.2 seconds from turn On\u003cbr\u003e\u003cbr\u003ePower Requirements\u003cbr\u003eField AC Voltage conversion of the MC152 is not possible. The MC152 is factory configured for the following AC Voltage:\u003cbr\u003e120V ~ 50\/60Hz at 3.7 Amps\u003cbr\u003eStandby: less than 0.3 watt\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\" data-mce-href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960697127166,"sku":null,"price":6500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc152-solid-state-amplifier-new-490.jpg?v=1697047448"},{"product_id":"mcintosh-mc1502-tube-amplifier","title":"McIntosh MC1502 Tube Amplifier - NEW","description":"\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 150 Watts x 2 Channels\u003cbr\u003e• Unity Coupled Circuit Output Transformers\u003cbr\u003e• Featuring 8 x KT88, 4 x 12AX7A and 4 x 12AT7 vacuum tubes\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe MC1502 Vacuum Tube Amplifier is a stereo amplifier designed for home audio and home music systems that produces 150 Watts per channel. It is the direct replacement to our award winning MC2152 Limited Edition 70th Anniversary Vacuum Tube Amplifier, which was released in celebration of our 70th Anniversary that occurred in 2019. The new MC1502 has identical audio specifications and sound reproduction performance of the heralded MC2152 but in a more customary McIntosh design.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe MC1502 \"combines brutal control and quantities of power, with openness and sophistication. The amplifier is potent enough to power most speakers, and will only sound better the more it has to work with.\" Highly recommended.\u003c\/strong\u003e \u003cstrong\u003e– Lyd \u0026amp; Bilde\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe MC1502 shares the timeless styling of our classic MC275 Vacuum Tube Amplifier. As the MC1502 has twice the stereo power rating of the MC275 (150 Watts vs. 75 Watts) and is physically larger, in many ways it can be considered the MC275's big brother. And while a pair of MC275s can be run in mono to achieve the 150 Watts per channel output of the MC1502, the MC1502 boasts a better signal-to-noise ratio of 112dB vs. 105dB for the MC275 pairing – producing an even quieter performance than the already quiet MC275.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe MC1502 is \"an unqualified hit.\" It has the \"cleanliness, low noise, and bandwidth of the best sounding modern amp designs with just enough of the special sauce that I love about tubes and transformers. True high-end audiophile sound in all its refined glory, without any rare tube types, finicky setup, or usage idiosyncrasies. Plus, LOTS of power and some fun features all in a beautiful package built to last a lifetime and beyond. Highly recommended.\" – Part-Time Audiophile\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe MC1502 is powered by eight KT88 output vacuum tubes, with four assigned to each stereo channel. It also has eight small signal tubes, consisting of four 12AX7A and four 12AT7 vacuum tubes; two of each of these vacuum tubes are dedicated to each audio channel. The 12AX7A vacuum tubes are for the Balanced and Input amps, while the 12AT7 tubes are for the Voltage and Driver amps. All the vacuum tubes are covered by a 12-gauge stainless steel wire cage with a black powder coated finish.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe MC1502 Vacuum Tube Amplifier and C22 Vacuum Tube Preamplifier Mk V represents McIntosh’s traditional heritage sound and with the added modern McIntosh technology, another masterpiece is born. – HiFi \u0026amp; Home Theater Audio\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003c\/b\u003eThe KT88 vacuum tube sockets include Air-Pipe cooling at their bases to help facilitate long service life. The eight signal tube sockets have ceramic base construction with gold plated contacts, providing protection from atmospheric contamination. All the vacuum tubes sit atop the precision formed stainless steel chassis polished to a mirror finish. Our Sentry Monitor™ technology monitors the output current and shuts the amplifier off if it ever exceeds safe limits; the signal tubes will flash red if Sentry Monitor is ever activated.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eThe MC1502 Vacuum Tube Amplifier and C22 Vacuum Tube Preamplifier Mk V is \"outstanding equipment\" and \"is rich with an uncommon magic and will provide precious pleasure. Moreover it will fit most loudspeakers nicely, even the most demanding ones.\" - Haute Fidélité\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlike many other amplifiers, the MC1502's full 150 Watts can be delivered to almost any pair of speakers regardless if they have 2, 4 or 8 Ohm impedance. This is thanks to our patented Unity Coupled Circuit output transformer technology – the same technology McIntosh was founded on in 1949. Two Unity Coupled Circuit output transformers flank the power transformer which is positioned between them. Each transformer is housed in a glass topped extruded enclosure that displays the wiring diagram for each transformer. Two fully spelled out vintage die cast aluminum name badges adorn two sides of the MC1502, while an abbreviated badge is centered between the Tube Lights and Power knobs. \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\"Extended listening reveals that this amplifier is just as good at low volumes as it is pushed to its limit... In addition to sounding great at high and low volumes, the MC1502 handles the most densely packed and technically challenging recordings with ease... this amplifier is quiet. There are plenty of solid-state amplifiers that aren’t this quiet... Tube amplifiers aren’t for everyone, but the McIntosh has gone above and beyond expectation to bring us an amplifier that produces plenty of power, sounds fantastic, and is well built... The highest compliment I can give the MC1502 is that I’m selling my beloved MC275 and buying a rack with a bigger lower shelf. It’s a keeper.\" - Tone Audio\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eBoth balanced and unbalanced inputs are included to connect the MC1502 to your preamplifier and the rest of your home audio system. Our patented Solid Cinch™ speaker binding posts will securely connect your speaker cables to your speakers.\u003c\/p\u003e\n\u003cp\u003eAn input and output for our Power Control technology allows other connected McIntosh components, such as preamplifiers, CD players, turntables, or media steamers, to automatically turn on and off.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced XLR and unbalanced RCA inputs, McIntosh Solid Cinch™ speaker binding posts, McIntosh Power Control In\/Out, IEC power input.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMC1502 Tube Amplifier, Tube Cover (Cage), Manual, Shipping Carton, Power Cord.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWidth is 18 1\/4 inches (46.4cm), Height is 10 1\/4 inches (26cm), Depth is 21 inches (53.3cm) including connectors.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e118 pounds (53.5 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.tonepublications.com\/review\/the-mcintosh-mc1502-power-amplifier\/\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc1502om01.pdf?revision=0ecb1950-282c-44ef-bcc3-9ef19bdccc67\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Digital Audio Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-digital-audio-cables\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" title=\"McIntosh Speaker Cables on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" title=\"McIntosh Power Control Cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable Power Cords\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePower Output\u003cbr data-mce-fragment=\"1\"\u003eMinimum sine wave continuous average power output per channel, both channels operating is:\u003cbr data-mce-fragment=\"1\"\u003e150 watts into 2 ohm loads\u003cbr data-mce-fragment=\"1\"\u003e150 watts into 4 ohm loads\u003cbr data-mce-fragment=\"1\"\u003e150 watts into 8 ohm loads\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eOutput Load Impedance\u003cbr data-mce-fragment=\"1\"\u003e2, 4 or 8 ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eRated Power Band\u003cbr data-mce-fragment=\"1\"\u003e20Hz to 20,000Hz\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTotal Harmonic Distortion\u003cbr data-mce-fragment=\"1\"\u003e0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eDynamic Headroom\u003cbr data-mce-fragment=\"1\"\u003e1.2dB\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eFrequency Response\u003cbr data-mce-fragment=\"1\"\u003e+0, -0.5dB from 20Hz to 20,000Hz\u003cbr data-mce-fragment=\"1\"\u003e+0, -3.0dB from 10Hz to 70,000Hz\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eInput Sensitivity (for rated output)\u003cbr data-mce-fragment=\"1\"\u003e1.7 Volts Unbalanced\u003cbr data-mce-fragment=\"1\"\u003e3.4 Volts Balanced\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eSignal To Noise Ratio (A-Weighted)\u003cbr data-mce-fragment=\"1\"\u003e112dB below rated output\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eIntermodulation Distortion\u003cbr data-mce-fragment=\"1\"\u003e0.5% maximum, if the instantaneous peak power output does not exceed twice the rated power output for any combination of frequencies from 20Hz to 20,000Hz.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eWide Band Damping Factor\u003cbr data-mce-fragment=\"1\"\u003eGreater than 18\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eInput Impedance\u003cbr data-mce-fragment=\"1\"\u003e47,000 ohms Unbalanced\u003cbr data-mce-fragment=\"1\"\u003e20,000 ohms Balanced\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePower Control Input\u003cbr data-mce-fragment=\"1\"\u003e5-15VDC, less than 1mA\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePower Control Output\u003cbr data-mce-fragment=\"1\"\u003e12VDC, 25mA\u003cbr data-mce-fragment=\"1\"\u003eOutput is 0.2 seconds from turn On.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTube Complement\u003cbr data-mce-fragment=\"1\"\u003e4 x 12AX7A Input and Phase Inverter\u003cbr data-mce-fragment=\"1\"\u003e4 x 12AT7 Voltage Amplifier and Driver\u003cbr data-mce-fragment=\"1\"\u003e8 x KT88 Power Output\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePower Requirements\u003cbr data-mce-fragment=\"1\"\u003eField AC Voltage conversion of the MC1502 is not possible.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe MC1502 is factory configured for the following AC VoltageL\u003cbr data-mce-fragment=\"1\"\u003e120V ~ 50\/60Hz at 5.5 Amps\u003cbr data-mce-fragment=\"1\"\u003eStandby: Less than 0.3 watts\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960697159934,"sku":null,"price":14000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc1502-tube-amplifier-new-423.webp?v=1695754991"},{"product_id":"mcintosh-mc275-tube-amplifier","title":"McIntosh MC275 Tube Amplifier - New","description":"\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 75 Watts x 2 channels or 150 Watts x 1 channel\u003cbr\u003e• Unity Coupled Circuit Output Transformers\u003cbr\u003e• (4) KT88, (4) 12AT7 and (3) 12AX7A vacuum tubes\u003cbr\u003e• \u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eOne of the most iconic amplifiers ever made by any brand\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eUpon its initial release in 1961, the MC275 Vacuum Tube Amplifier became an instant favorite due to its ability to drive the power-hungry speakers of that time period with great power at low distortion levels. However, as transistors emerged and vacuum tubes became 'old technology,' the MC275 was discontinued in 1971. Thankfully, that is not where the story of the MC275 ends.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\"Good audio engineering is timeless.\" - \u003ca href=\"https:\/\/www.mcintoshlabs.com\/brand\/news\/MC275-Stereophile-Recommended-Component-2017\"\u003eStereophile\u003c\/a\u003e \u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eIt came back into production as a special commemoration edition in 1993 to posthumously honor McIntosh co-founder and longtime president Gordon Gow. The reincarnated MC275 received incredibly high acclaim and earned its spot back in the product lineup. The overall storyline behind the MC275 and its history with McIntosh is exceptionally rich and it has been the driving force behind countless home audio systems for decades. It is hard to imagine McIntosh without the MC275.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cfigure role=\"none\" class=\"table-cell w50 vertical-middle to-load-b loaded\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\u003cimg height=\"83\" width=\"518\" src=\"https:\/\/www.mcintoshlabs.com\/cdn-cgi\/image\/quality=90\/-\/media\/images\/mcintoshlabs\/products\/productimages\/mc275b\/mc275-all-generations.jpg?rev=d10a4eae3af943a59c0bed925492be00\u0026amp;revision=d10a4eae-3af9-43a5-9c0b-ed925492be00\" alt=\"McIntosh MC275 Amplifier\" class=\"\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigcaption\u003eMC275 Family Photo (from left to right): Original Version 1961-1971; Mk II Gordon Gow Commemorative Edition 1993; Mk III 1995-2003; Mk IV 2004-2007; Mk V 2007-2011; Mk VI 2011-current (2011 model was 50th Anniversary Limited Edition and was available with a gold chassis).\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eNow in its sixth generation, the MC275 has many subtle enhancements from the previous releases that have greatly improved performance. Combined with the widest bandwidth McIntosh output transformer design, the MC275 features tauter bass control and thermally quiet circuit design. The result is pure music. This vacuum tube power amplifier has all the features to meet the needs of today’s music enthusiast, while preserving the qualities that have made the MC275 the most revered McIntosh vacuum tube amplifier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\u003ciframe aria-label=\"McIntosh MC275 Amplifier video\" width=\"888\" height=\"500\" src=\"https:\/\/www.youtube.com\/embed\/hOXk5OwJbu4?rel=0\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC275 can be used in either stereo or mono mode. When used as a stereo amplifier, it will deliver 75 Watts per channel to 4, 8 or 16 Ohm speakers; in mono mode it will output 150 Watts to a single \u003ca href=\"https:\/\/www.mcintoshlabs.com\/products\/speakers\"\u003espeaker\u003c\/a\u003e with an impedance of 2, 4 or 8 Ohms. The MC275's full power can be delivered regardless of the speaker impedance thanks to our patented Unity Coupled Circuit output transformer technology – the same technology McIntosh was founded on in 1949. The two Unity Coupled Circuit output transformers are located next to the power transformer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cfigure role=\"none\" class=\"table-cell w50 vertical-middle to-load-b loaded\"\u003e\n\u003cdiv class=\"d-ib\"\u003e\n\u003cdiv class=\"d-ib\"\u003eFour KT88 vacuum tubes power the output section while four 12AT7 and three 12AX7A smaller vacuum tubes are used for the Input, Voltage, and Driver amps. The MC275 offers both balanced and unbalanced inputs to connect to your preamplifier and home audio system. It comes with our fuse-less Sentry Monitor\u003csup\u003e™\u003c\/sup\u003e short-circuit protection that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal. Our patented gold-plated Solid Cinch\u003csup\u003e™\u003c\/sup\u003e speaker binding posts assure the best connection to all speaker cables.McIntosh Solid Cinch speaker binding posts.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe seven small tubes are LED illuminated to indicate the amplifiers functional status: upon power up, they sequentially glow amber for a few seconds and then all turn green to signify system readiness. In the rare case of an output tube failure, the small tube(s) in front of it will turn red to notify you of the problem. An input and output for our Power Control technology allows other connected McIntosh components.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eXLR and RCA Inputs, 12 Trigger In\/Out, IEC Power Cord. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAmplifier, Tube Cage, Manual, Power Cord and Mono Jumpers. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e16-1\/2\" (41.9cm) x 8-1\/2\" (21.6cm) x 12\" (30.5cm)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e67 lbs (30.5 Kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc275bom01.pdf?rev=0c6db59bb1b141baac73dadb6b9c76b0\u0026amp;revision=0c6db59b-b1b1-41ba-ac73-dadb6b9c76b0\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLink to Literature:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC275B-brochure-35015800.pdf?rev=8a51a1b6b92643c583c907a73adeb6f4\u0026amp;revision=8a51a1b6-b926-43c5-83c9-07a73adeb6f4\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - ASCENT SERIES PK14 POWER CORD - NEW - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk14-pk-14-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Ascent 14 Gauge Power Cord\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - SUMMIT SERIES PK14 PALLADIAN POWER CORD - NEW - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk14-palladian-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Palladian 14 Gauge Power Cord\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCircuit Configuration:\u003cbr\u003eUnity Coupled\u003cbr\u003e\u003cbr\u003eCircuit Design:\u003cbr\u003eVacuum Tube\u003cbr\u003e\u003cbr\u003eMono Bridge:\u003cbr\u003eYes\u003cbr\u003e\u003cbr\u003eMono Parallel:\u003cbr\u003eYes, 150W @ 2, 4 or 8 Ohms\u003cbr\u003e\u003cbr\u003eOutput Type:\u003cbr\u003eUnity Coupled Output Transformer\u003cbr\u003e\u003cbr\u003eMeters:\u003cbr\u003eNo\u003cbr\u003e\u003cbr\u003eLight (LED) Switching\u003cbr\u003eSmall signal tubes LEDs controlled by McIntosh preamp\u003cbr\u003e\u003cbr\u003eBalanced Input:\u003cbr\u003eYes\u003cbr\u003e\u003cbr\u003eIlluminations:\u003cbr\u003eSmall Signal Tubes, LED\u003cbr\u003e\u003cbr\u003eChassis Style:\u003cbr\u003ePolished Stainless Steel\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":43960697192702,"sku":"","price":7500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc275-tube-amplifier-new-518.jpg?v=1776452383"},{"product_id":"mcintosh-mc303-3-channel-solid-state-amplifier-pre-owned","title":"McIntosh MC303 3-Channel Solid State Amplifier, Pre-Loved","description":"\u003cp\u003e\u003cstrong\u003e\u003cmeta charset=\"UTF-8\"\u003eThis Pre-Loved MC303 will come with a SkyFi 1-year warranty (no McIntosh warranty). \u003cbr\u003e\u003cbr\u003ePrice listed is MSRP, please call to order and discuss pricing. \u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• Pre-owned, coming from an audiophile owner (only owner) who took fantastic care of all his gear\u003c\/p\u003e\n\u003cp\u003e• Fully tested in our shop and working like new.\u003cbr\u003e\u003cbr\u003e• 300 Watts x 3 Channels\u003cbr\u003e• Features McIntosh Renowned Autoformer \u003cbr\u003e• Designed for home theaters\u003cbr\u003e• Tri-Amp capability\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe McIntosh MC303 is our most powerful multi-channel amplifier to date, providing 300 Watts into each of 3 channels.\u003c\/p\u003e\n\u003cp\u003eIt features our renowned Autoformer™, which allows its full 300 Watts of power to be delivered into 2, 4 or 8 Ohm speakers with the lowest noise and distortion performance possible.\u003c\/p\u003e\n\u003cp\u003eThe MC303 was designed with the intent to drive a home theater’s front left, front right and center channels. As most of a movie’s soundtrack is delivered by these three channels, the powerful MC303 provides all the power needed for an amazing in-home theater experience.\u003c\/p\u003e\n\u003cp\u003eFor surround channels, combine the MC303 with our MC312 or MC152 amplifiers and fully immerse yourself in your movie collection. For music lovers, the MC303 can be used in tri-amping configurations on compatible speakers, such as our XRT1.1K or XRT2.1K.\u003c\/p\u003e\n\u003cp\u003eThe MC303 shares many notable McIntosh technologies that are found in our other home audio and home theater products, including Power Guard® that prevents over-driving of the amplifier and the resulting harsh sounding clipping that could damage your speakers. Sentry Monitor™ is our fuse-less short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal\u003c\/p\u003e\n\u003cp\u003eInputs for both balanced cables and unbalanced cables are available to provide flexibility in connecting to the rest of your system.\u003c\/p\u003e\n\u003cp\u003eA triple bank of blue watt meters provides instant recognition of power output (the meters may be switched off for theater use if they conflict with the television or movie screen).\u003c\/p\u003e\n\u003cp\u003eAesthetically, the MC303 is every bit as McIntosh as any of our products. A polished stainless steel chassis, classic black glass front panel, knobs and custom machined aluminum handles all come standard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSkyFi Testing Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• All three channels test past rated power.\u003cbr\u003e• Power Guard turns on properly and the Power Guard indicator lights display.\u003cbr\u003e• Tested two channels at a time and both channels would produce approximately 390W into 8 ohms.\u003cbr\u003e• Balanced and unbalanced inputs tested and both working on all channels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSkyFi Cosmetic Notes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e• Light blemishes on handles and rear panel, not unexpected for am amplifier of this substantial weight and heft from physical movement.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson’s inauguration speech to Woodstock to the famous Grateful Dead “Wall of Sound,” McIntosh has not only witnessed history, we have shaped it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCosmetic Condition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e7 - Some Wear and Light Scratches\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\"\u003ehttps:\/\/skyfiaudio.com\/pages\/our-rating-scale\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOwnership:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSingle Owner\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate Age:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e2017 (Still in active production)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMC303, Power Cord, Shipping Carton.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e17-3\/4\" (45.09cm) x 12-3\/8\" (31.43cm) (including feet) x 22\" (55.88cm) (including front panel and cables)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e155 lbs (70.3 kg)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eReviews:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/ReviewAwardDocuments\/MC303-Stereophile-509.pdf?rev=1efa006dc1b84a8ab39c667cf1e28adb\u0026amp;revision=1efa006d-c1b8-4a8a-b39c-667cf1e28adb\"\u003eMC303 Stereophile 509\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"MC303 Power Amplifier Owner's Manual on SkyFi Audio\" href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc303om01.pdf?rev=f19199221e81428ab535c58345b52171\u0026amp;revision=f1919922-1e81-428a-b535-c58345b52171\" target=\"_blank\"\u003eMC303 Power Amplifier Owner's Manual\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - ASCENT SERIES PK10 POWER CORD - NEW - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Ascent 10 Gauge Power Cord\u003c\/a\u003e - Better \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"KIMBER KABLE - SUMMIT SERIES PK10 PALLADIAN POWER CORD - NEW\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-pk10-palladian-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Palladian 10 Gauge Power Cord\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eELECTRONIC SPECIFICATIONS\u003cbr\u003ePower Output per Channel\u003cbr\u003e300W @ 2, 4 or 8 Ohms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNumber of Channels\u003cbr\u003e3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003e0.005%\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eS\/N below rated output\u003cbr\u003e112dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Headroom\u003cbr\u003e1.8dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003e\u0026gt;40\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003e20Hz to 20kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003e+0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3dB from 10Hz to 100,000Hz\u003c\/p\u003e\n\u003cp\u003eGENERAL SPECIFICATIONS\u003cbr\u003eCircuit Configuration\u003cbr\u003ePush-Pull Complementary Autoformers\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCircuit Design\u003cbr\u003eSolid State\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Bridge\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Parallel\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Type\u003cbr\u003eAutoformer™\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeters\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeter Light Switch\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced Input\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFront Panel\u003cbr\u003eGlass with handles\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIllumination\u003cbr\u003eLED Fiber Optic\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eChassis Style\u003cbr\u003eInverted\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":44036940464382,"sku":"104401","price":14000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc303-3-channel-solid-state-amplifier-pre-loved-790.jpg?v=1768584681"},{"product_id":"mcintosh-mc240-vintage-tube-amp-skyfi-restored-w-premium-vintage-tubes","title":"McIntosh MC240 Vintage Tube Amp - SkyFi Restored w\/Premium Vintage Tubes","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eWe painstakingly restored this classic and coveted stereo tube amplifier to its full glory. \u003cbr\u003e\u003cbr\u003eInternally we replaced every critical component while carefully maintaining the original sonic quality.\u003cbr\u003e\u003cbr\u003eThis listing also includes a rare and correct McIntosh tube cover (tube cage).\u003cbr\u003e\u003cbr\u003eThis is a 40W x 2 (stereo) tube amplifier produced from 1960-1969.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSkyFi Restoration Notes:\u003c\/strong\u003e\u003cbr\u003eThis MC240 underwent an extensive electronic restoration in house.\u003c\/p\u003e\n\u003cp\u003eThe electronic work included a full rebuild of the power supply using custom made multi-section capacitors that match the exact values and layout of the original power supply. The bias supply was also rebuilt with new parts. The selenium bias diode was swapped to silicon with proper adjustment resistor to maintain the ideal bias level for the unity coupled output section. We also replaced all of the paper and di-film capacitors in the signal path after finding them leaky and drifted.\u003c\/p\u003e\n\u003cp\u003eDuring the signal path capacitor replacement we checked all of the resistors and replaced any parts that had drifted out of tolerance. By default we replace the phase inverter balancing resistors and plate load resistors with precision metal film parts to ensure trouble free performance.\u003c\/p\u003e\n\u003cp\u003eTo finish up, we replaced the power cord and inrush current thermistor.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTube Notes:\u003c\/strong\u003e\u003cbr\u003eThis amplifier is fitted with a set of premium vintage tubes. The output tubes are RCA 6L6 (2) are labeled McIntosh at the base. All four are RCA made tubes. The two labeled RCA have brown colored getter flashes but still test strong and sound great! The 12BH7 are strong matched and balanced GE. The remaining tubes are all strong testing authentic Telefunken 12AX7 and 12AU7.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCosmetic Notes:\u003c\/strong\u003e\u003cbr\u003eThis MC240 was well loved. It has moderate chrome pitting and light silkscreen wear which is common for McIntosh amplifiers from this era. There are also some scratches\/markings on the black transformer covers and cage.\u003c\/p\u003e\n\u003cp\u003eTwo historic Dave O'Brian clinic stickers flank the McIntosh 240 badge and show years 1971 and 1972.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBrand Background:\u003c\/b\u003e\u003cbr\u003eMcIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eUnknown\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA Inputs, Screw Terminal Outputs\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eSmooth, uncolored, undistorted natural and clean\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e6 - See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eUnit, power cord, manual, and tube cage.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eWill be packed using our highly developed in-house process and custom packing materials.\u003cbr\u003e\u003ciframe title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE\" height=\"720\" width=\"1280\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003ePower output: 40 watts per channel into 8Ω (stereo), 80 watts into 2Ω (mono)\u003cbr\u003eFrequency response: 16Hz to 40kHz\u003cbr\u003eTotal harmonic distortion: 0.5%\u003cbr\u003eInput sensitivity: 0.5V\u003cbr\u003eSignal to noise ratio: 90dB\u003cbr\u003eSpeaker load impedance: 4Ω to 16Ω\u003cbr\u003eTube  complement: 1 x 12AX7, 2 x 12AU7, 2 x 12BH7, 2 x 12AX7, 4 x 6L6GC\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003e17-1\/4\" x 10-3\/4\" x 8\"\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e56 lbs.\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - Hero Ascent Series RCA Interconnects - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - Silver Streak Summit Series RCA Interconnects - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" title=\"Kimber Kable - 8TC Ascent Series Speaker Cables - SkyFi Audio\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-monocle-xl-speaker-cables-pair-new\" title=\"Kimber Kable - MONOCLE XL Summit Series Speaker Cables - SkyFi Audio\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-monocle-xl-speaker-cables-pair-new\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - BiFocal XL Summit Series Bi-Wire Speaker Cables - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-bifocal-xl-speaker-cables-bi-wire-pair-new\" target=\"_blank\" data-mce-href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-bifocal-xl-speaker-cables-bi-wire-pair-new\"\u003eKimber Kable - Bi-Wire Speaker Cables\u003c\/a\u003e Best (If Applicable)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003e\u003cstrong\u003eThe SkyFi Testing Process for Tube Amplifiers:\u003c\/strong\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use an Amplitrex AT-1000 Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. We document the results of each tube and replace any weak or suspect tubes before proceeding. When we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable. If everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged. Once we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWe start by feeding the input of the amplifier with a low level 1KHz test signal, slowly increase its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. For tube amps we like to run this test at least twice. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003cbr\u003e\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":44066379071742,"sku":"102037","price":6990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc240-vintage-tube-amp-skyfi-restored-w-premium-tubes-amplifier-203.jpg?v=1770310771"},{"product_id":"sequerra-ua-1-custom-el34-tube-monoblocks-uber-rare-1","title":"Sequerra UA-1 Custom EL34 Tube Monoblocks - Uber Rare! - w\/Free Shipping","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eUber rare set of Sequerra monoblocks utilizing a plethora of EL34 tubes (some of the best sounding). Featuring no less than FOUR discrete chassis connected by high quality custom umbilical cords. \u003cbr\u003e\u003cbr\u003eOriginal MSRP was $125K in the late 1990's. Yes you read that correctly, and note that MSRP works out to $257k+ in 2023.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSkyFi Technical Notes:\u003c\/strong\u003e\u003cbr\u003eThese amplifiers appear to have gone through a series of modifications throughout their lifetime. The removable front panel has a display and a bay of 10 bias adjustment trimmers. This circuit was disconnected at one point and the amp was converted to run on a single bias adjustment.\u003c\/p\u003e\n\u003cp\u003eThis modification makes the bias adjustment less complicated, but does require a set of 10 tightly matched output tubes! We fitted both amps with fresh sets of very tightly matched Psvane EL34 tubes for this reason. In addition to the bias modification, there are various unused connections jacks and cutouts on the rear panels. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSkyFi Design Notes:\u003c\/strong\u003e\u003cbr\u003eThere is a not a lot of information available on these amplifiers. It's also possible these were an early prototype chassis.\u003c\/p\u003e\n\u003cp\u003eOur circuit study indicates these amplifiers in their current configuration are set up as follows:\u003cbr\u003e\u003cbr\u003e• Stage 1 ~ Western Electric 5842 differential input pair.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eStage 2 ~ 5687 dual triode pre-driver - Direct Coupled to Previous Stage.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eStage 3 ~ +\/- Phase EL34 Drivers - Direct Coupled to Previous Stage.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eOutput Stage ~ Parallel Push Pull EL34 (5 Tubes + 5 Tubes Per Phase) wired as Triodes, yielding approx. 90W into 8 ohms.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eGlobal adjustable tube regulated bias supply (12B4A).\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eThe power supply is very complex and provides a collection of regulated voltages for the various tube heaters, drivers, and output circuits.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eThe amplifiers are fitted with balanced XLR and single ended RCA inputs. If using single ended inputs we recommend shorting pins 1 and 2 of the XLR connectors.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eCheater plugs for lifting the ground on the power cords may be necessary to avoid ground hum in certain applications.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSkyFi Cosmetic Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eThese units may have originally had bottom covers, these covers are no longer present as shown in our photos.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eSome of the paint on the chassis has a sticky texture.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eEmpty cutouts and unused connectors on power supply and amp chassis.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e• \u003c\/span\u003eSlight component mismatch between L\/R channel chassis.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eUnknown\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eXLR Inputs, RCA Inputs, and 5 Way Speaker Binding Posts.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eAccurate to the recording\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e6 - See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room. \u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eJust the units as pictured and power cords\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eWill ship safely secured and strapped to a shipping pallet anywhere within the lower 48 US States for free. We can ship worldwide for an addition $400 fee. Local pickup from our shop in Glen Rock, NJ also welcome.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eWill be packed using our highly developed in-house process and custom packing materials.\u003cbr\u003e\u003ciframe width=\"1280\" height=\"720\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE\" title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e200 lbs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-silver-streak-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003e\u003cstrong\u003eThe SkyFi Testing Process for Tube Amplifiers:\u003c\/strong\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use an Amplitrex AT-1000 Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. We document the results of each tube and replace any weak or suspect tubes before proceeding. When we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable. If everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged. Once we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation.\u003c\/p\u003e\n\u003cp\u003eWe start by feeding the input of the amplifier with a low level 1KHz test signal, slowly increase its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. For tube amps we like to run this test at least twice. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e","brand":"Sequerra","offers":[{"title":"Default Title","offer_id":44066469576958,"sku":"101789","price":30490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/sequerra-ua-1-custom-el34-tube-monoblocks-uber-rare-w-free-shipping-amplifier-985.jpg?v=1774461546"},{"product_id":"audio-research-d-150-vintage-tube-amplifier-uber-rare-serviced","title":"Audio Research D-150 Vintage Tube Amplifier- Uber Rare - Serviced - Accepting Offers - w\/Free Shipping","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eHere we have what is arguably the rarest and most desirable vintage tube amplifiers from ARC. \u003cbr\u003e\u003cbr\u003eWhile there are a few D-79s usually available if you dig around, the big brother D-150 rarely comes up.\u003c\/p\u003e\n\u003cp\u003eWe've been saving this beauty in our private collection for many years, and we're now accepting offers. It's very difficult to put a price on a true collector piece so we will let the market dictate. \u003cbr\u003e\u003cbr\u003eIt's my understanding that only 200 D-150 units were produced. \u003cbr\u003e\u003cbr\u003eThis was also the world's first powerful tube stereo amplifier, rated in the 2012 \"Absolute Sound Guide to Audio Electronics\" as the \"3rd Most Significant Amplifier of All Time\".\u003cbr\u003e\u003cbr\u003eWe had our tube guru technician go through this amplifier to get it into tip-top shape by servicing it prior to listing. It is mostly unmolested except for a few critical components that were replaced for good measure. It's working as it should and sounding beautiful. \u003cbr\u003e\u003cbr\u003eCosmetic condition is stellar with a super clean faceplate and meters. Chassis may have a scuff here or there, but nothing notable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e:\u003cbr\u003eThese ship for free anywhere in the contiguous 48 states. Worldwide shipping also available for an additional $400 fee.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSkyFi Service Notes:\u003c\/strong\u003e\u003cbr\u003e• All tubes tested, two weak driver tubes replaced, output tubes replaced with two matched quads of Svetlana SET winged C 6550.\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eAll controls cleaned and tested.\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eUnit cleaned inside and out.\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eBias adjusted to set line for all tubes, both channels test to rated power.\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eNOTE: This unit had its large can capacitors replaced at some point in the past. \u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eThis amplifier may experience ground buzz on certain systems. A cheater plug can be used to lift the ground in this situation to eliminate buzz. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSkyFi Cosmetic Notes:\u003c\/strong\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e•\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eThe lettering on some of the large fuse holder caps is gone or partially worn.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrand Background:\u003c\/b\u003e\u003cbr\u003eAudio Research continues its dedication to unparalleled musical expression and crafting components of the highest quality and lasting value for its customers. Our long-term dedication to service is peerless in this industry (Audio Research, with few exceptions, can repair anything ever produced during its entire history). We continue to seek out new and exciting ways to make music more real and more enjoyable. More than just a name or a marketing tool, Audio Research has come to represent exceptional performance and long-term value. Experience Audio Research – experience High Definition®.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eUnknown\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA Inputs and screw terminals for speakers\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eSmooth, uncolored, undistorted natural and clean.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e8\/10 = Very Good. Excellent front faceplate, one minor flaw on chassis side or top.. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eJust the unit and power cord.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eWill be packed using our highly developed in-house process and custom packing materials.\u003ciframe width=\"1280\" height=\"720\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE\" title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\"\u003e\u003c\/iframe\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReviews:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.stereophile.com\/content\/audio-research-dual-150-power-amplifier\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr\u003ePower Output:\u003cbr\u003e150 Watts per channel minimum RMS, into a 4, 8, or 16 ohm load\u003cbr\u003e\u003cbr\u003eFrequency Response:\u003cbr\u003e20 Hz to 20 kHz \u003cbr\u003e\u003cbr\u003eDistortion:\u003cbr\u003eLess than 0.5% at Rated Power \u003cbr\u003e\u003cbr\u003eInput Impedance:\u003cbr\u003e80K ohms at 20 Hz\u003cbr\u003e30K ohms at 15k Hz \u003cbr\u003e\u003cbr\u003eOutput Impedance:\u003cbr\u003e4, 8, 16 ohms \u003cbr\u003e\u003cbr\u003eTube Complement:\u003cbr\u003e12AX7\u003cbr\u003e6FQ7\u003cbr\u003e6550\u003cbr\u003e\u003cbr\u003eDamping Factor:\u003cbr\u003e14 at 8 ohms (1k Hz) \u003cbr\u003e\u003cbr\u003eInput Sensitivity:\u003cbr\u003e2.2 volts for rated output \u003cbr\u003e\u003cbr\u003eHum \u0026amp; Noise:\u003cbr\u003eMore than 80db below rated output \u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003eFront Panel: 19\" Wide X 10.5\" High. Chassis 16.5\" Deep\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e115 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003cbr\u003e1975\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/audioresearch.com\/wp-content\/uploads\/2021\/06\/D150_Manual.pdf\" title=\"Audio Research D-150 Vintage Tube Amplifier- Uber Rare - Serviced - Accepting Offers - SkyFi Audio\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe SkyFi Testing Process for Tube Amplifiers:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use an Amplitrex AT-1000 Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. We document the results of each tube and replace any weak or suspect tubes before proceeding. When we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable. If everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged. Once we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation.\u003c\/p\u003e\n\u003cp\u003eWe start by feeding the input of the amplifier with a low level 1KHz test signal, slowly increase its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. For tube amps we like to run this test at least twice. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e","brand":"Audio Research","offers":[{"title":"Default Title","offer_id":44149020098814,"sku":"101117","price":30390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/audio-research-d-150-vintage-tube-amplifier-uber-rare-serviced-accepting-offers-w-free-shipping-141.jpg?v=1774461426"},{"product_id":"mcintosh-mc7108-8-channel-amplifier-configurable","title":"McIntosh MC7108 - 8 Channel Amplifier - Configurable!","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eSuper flexible multi-channel amplifier from renowned US maker McIntosh.\u003cbr\u003e\u003cbr\u003eConfigurable to 8, 7, 6, 5, or 4 channels, with varying degrees of power delivery to fit just about any home theater system. Bridged channels can deliver 100W.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMC7108 OUTPUT OPERATING CONFIGURATIONS:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e8 x 40 watt channels\u003cbr data-mce-fragment=\"1\"\u003e6 x 40 watt channels and 1 x 100 watt bridged pair channel\u003cbr data-mce-fragment=\"1\"\u003e4 x 40 watt channels and 2 x 100 watt bridged pair channels\u003cbr data-mce-fragment=\"1\"\u003e2 x 40 watt channels and 3 x 100 watt bridged pair channels\u003cbr data-mce-fragment=\"1\"\u003e4 x 100 watt bridged pair channels\u003cbr data-mce-fragment=\"1\"\u003e(4 ohm loudspeaker loads)\u003cbr\u003e\u003cbr\u003eIn excellent cosmetic condition, and fully tested in our lab were it performed as it should.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eService Notes:\u003c\/strong\u003e\u003cbr\u003e- Volume trimmer for channel 1 replaced.\u003cbr\u003e- All lamps replaced.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCosmetic Notes:\u003c\/strong\u003e\u003cbr\u003e- Light marks on end caps and metal trim around glass.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrand Background:\u003c\/b\u003e\u003cbr\u003eMcIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSingle Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA input and output jacks, screw terminals for speakers, captive power cord. 12V triggers.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eAccurate to the recording\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e7\/10 = Good. One or two minor scratches. Well Maintained.. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eJust the unit and power cord.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003ePOWER OUTPUT, EIGHT CHANNELS\u003cbr data-mce-fragment=\"1\"\u003e40 watts per channel, minimum sine wave continuous average power output per channel, all channels operating into 4 ohm loads.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe output RMS voltage is:\u003cbr data-mce-fragment=\"1\"\u003e12.6V across 4 ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePOWER OUTPUT, TWO CHANNELS BRIDGED\u003cbr data-mce-fragment=\"1\"\u003e100 watts into a 4 ohm load, minimum sine wave continuous average power output.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe output RMS voltage is:\u003cbr data-mce-fragment=\"1\"\u003e20V across 4 ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eOUTPUT LOAD IMPEDANCE\u003cbr data-mce-fragment=\"1\"\u003e8 or 4 ohms, for all eight separate channels\u003cbr data-mce-fragment=\"1\"\u003e8 or 4 ohms, for all Bridged Pairs\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eRATED POWER BAND\u003cbr data-mce-fragment=\"1\"\u003e20H2 to 20,000Hz\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTOTAL HARMONIC DISTORTION\u003cbr data-mce-fragment=\"1\"\u003e0.005% maximum harmonic distortion at any power level from 250mW to rated power per channel from 20Hz to 20,000Hz, all channels operating.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eIHF DYNAMIC HEADROOM\u003cbr data-mce-fragment=\"1\"\u003e1.8dB\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eFREQUENCY RESPONSE\u003cbr data-mce-fragment=\"1\"\u003e+ 0, -0.25dB from 20Hz to 20,000Hz\u003cbr data-mce-fragment=\"1\"\u003e+ 0, -3.0dB from 10Hz to 100,000Hz\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eINPUT SENSITIVITY\u003cbr data-mce-fragment=\"1\"\u003e1V, (2.5V with Level control at center detent)\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eA WEIGHTED SIGNAL TO NOISE RATIO\u003cbr data-mce-fragment=\"1\"\u003e92dB (112dB below rated output)\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eINTERMODULATION DISTORTION,SMPTE\u003cbr data-mce-fragment=\"1\"\u003e0.005% maximum if instantaneous peak power does not exceed twice the output power rating per channel, with all channels operating, for any combination of frequencies from 20Hz to 20,000Hz.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eWIDE BAND DAMPING FACTOR\u003cbr data-mce-fragment=\"1\"\u003e200 at 8 ohms\u003cbr data-mce-fragment=\"1\"\u003e100 at 4 ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eINPUT IMPEDANCE\u003cbr data-mce-fragment=\"1\"\u003e20,000 ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePOWER GUARD\u003cbr data-mce-fragment=\"1\"\u003eClipping is prevented and THD does not exceed 2% with up to 14dB overdrive at 1000Hz.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePOWER REQUIREMENTS\u003cbr data-mce-fragment=\"1\"\u003e120V, 50\/60Hz, 8A UL\/CSA\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003eFront panel: 17-1\/2 inches (44.5cm) W, 7-1\/16 inches (17.9cm) H, 20 inches (50.8cm) D behind mounting panel, including clearance for connectors. Panel clearance required in front of mounting panel is 3\/4 inch (1.9cm).\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e40 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003cbr\u003e1998\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/legacy-products\/amplifiers\/MC7108\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe SkyFi Testing Process for Solid State Amplifiers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1KHz test signal at the amplifier’s input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":44298679845118,"sku":"104637","price":2690.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc7108-8-channel-amplifier-configurable-561.jpg?v=1697814272"},{"product_id":"mcintosh-mc7106-6-channel-solid-state-amp-w-led-vu-meters-thx-rated-1","title":"McIntosh MC7106 - 6 Channel Solid State Amp w\/LED VU Meters - THX Rated","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eSuper flexible and powerful Lucasfilm THX rated theater amplifier from McIntosh. \u003cbr\u003e\u003cbr\u003e6 x 100 Watt amplifier channels in a single chassis!\u003cbr\u003e\u003cbr\u003eNote that a current McIntosh home theater amp will set you back over $7k \u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYou can configure this beast in the following configurations:\u003c\/strong\u003e\u003cbr\u003e1. Six separate 100 watt channels into 8 ohms, (160 watts into 4 ohms).\u003cbr\u003e2. Four 100\/160 watt channels and one 320 watt channel, bridged (8 ohms).\u003cbr\u003e3. Two 100\/160 watt channels and two 320 watt channels, bridged (8 ohms).\u003cbr\u003e4. Three 320 watt channels, bridged (8 ohms).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCosmetic Notes:\u003c\/strong\u003e\u003cbr\u003e- Minor bubbles at very top portion of glass.\u003cbr\u003e- This unit, like almost all other McIntosh units, uses a front glass faceplate which provides an attractive and very durable finish. The lettering will never show wear. \u003cbr\u003e- This particular sample is in super clean condition with little signs of wear.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eService Notes:\u003c\/strong\u003e\u003cbr\u003e- Replaced all lamps\u003cbr\u003e- Amp was previously serviced before arriving at SkyFi, we do not have documentation on the previous service work.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrand Background:\u003c\/b\u003e\u003cbr\u003eMcIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSingle Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA inputs and outputs, captive power cord, 5 way binding posts for speakers, 12V in and out triggers\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eAccurate to the recording\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e7\/10 = Good. One or two minor scratches. Well Maintained. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eJust the unit and power cord.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003ePERFORMANCE LIMITS\u003cbr data-mce-fragment=\"1\"\u003ePerformance limits are the maximum deviation from perfection permitted for a Mclntosh instrument. We promise you that when you purchase an MC7106 from a Mclntosh franchised dealer, it will be capable of performance at or better than these limits.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePOWER OUTPUT, SIX CHANNELS\u003cbr data-mce-fragment=\"1\"\u003e100 watts per channel into 8 ohm loads, or 160 watts per channel into 4 ohm loads minimum sine wave continuous average power output per channel, all channels operating.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe output RMS voltage is:\u003cbr data-mce-fragment=\"1\"\u003e28.3V across 8 ohms\u003cbr data-mce-fragment=\"1\"\u003e25.2V across 4 ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePOWER OUTPUT, TWO CHANNELS BRIDGED\u003cbr data-mce-fragment=\"1\"\u003e320 watts into an 8 ohm load, minimum sine wave continuous average power output.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe output RMS voltage is:\u003cbr data-mce-fragment=\"1\"\u003e50.6V across 8 ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eOUTPUT LOAD IMPEDANCE\u003cbr data-mce-fragment=\"1\"\u003e8 or 4 ohms, for all six separate channels\u003cbr data-mce-fragment=\"1\"\u003e8 ohms, Bridged operation\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eRATED POWER BAND\u003cbr data-mce-fragment=\"1\"\u003e20Hz to 20,000Hz\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eTOTAL HARMONIC DISTORTION\u003cbr data-mce-fragment=\"1\"\u003e0.005% maximum harmonic distortion at any power level from 250 mW to rated power output.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eIHF DYNAMIC HEADROOM\u003cbr data-mce-fragment=\"1\"\u003e8 ohms, 1.8dB\u003cbr data-mce-fragment=\"1\"\u003e4 ohms, 2.1dB\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eFREQUENCY RESPONSE\u003cbr data-mce-fragment=\"1\"\u003e+ 0, -0.25dB from 20Hz to 20,000Hz\u003cbr data-mce-fragment=\"1\"\u003e+ 0, -3.0dB from 10Hz to 100,000Hz\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eINPUT SENSITIVITY\u003cbr data-mce-fragment=\"1\"\u003e1V, (2.5V with Level control at center detent)\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eA-WEIGHTED SIGNAL-TO-NOISE RATIO\u003cbr data-mce-fragment=\"1\"\u003e93dB (113dB below rated output)\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eINTERMODULATION DISTORTION, SMPTE\u003cbr data-mce-fragment=\"1\"\u003e0.005% maximum if instantaneous peak power does not exceed twice the output power rating.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eRATINGS\u003cbr data-mce-fragment=\"1\"\u003eWIDE BAND DAMPING FACTOR\u003cbr data-mce-fragment=\"1\"\u003e200 at 8 ohms\u003cbr data-mce-fragment=\"1\"\u003e100 at 4 ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eINPUT IMPEDANCE\u003cbr data-mce-fragment=\"1\"\u003e20,000 ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePOWER GUARD\u003cbr data-mce-fragment=\"1\"\u003eClipping is prevented and THD does not exceed 2% with up to 14dB overdrive at 1000Hz.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePOWER REQUIREMENTS\u003cbr data-mce-fragment=\"1\"\u003e120V, 50\/60Hz, 12A UL\/CSA\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003eSize 7-1\/16\"H, 17-1\/2\"W and 20\"D\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e48 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003cbr\u003e1995\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/legacy-products\/amplifiers\/MC7106\" title=\"McIntosh MC7106 - 6 Channel Solid State Amp w\/LED VU Meters - THX Rated on SkyFi Audio\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe SkyFi Testing Process for Solid State Amplifiers:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003c\/p\u003e\n\u003cp\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1KHz test signal at the amplifier’s input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time. We finish off the bench evaluation with a 1KHz square wave check and a 20Hz to 20KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003c\/p\u003e\n\u003cp\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003c\/p\u003e\n\u003cp\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":44298679943422,"sku":"104638","price":3490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc7106-6-channel-solid-state-amp-wled-vu-meters-thx-rated-amplifier-862.jpg?v=1697814301"},{"product_id":"linn-av-5105-dual-mono-design-amplifier-100w-x-2","title":"Linn AV 5105 Dual-Mono Design Amplifier - 100W x 2","description":"\u003cp\u003eThis freshly serviced Linn AV5105 ready to rock your system for another 20 years.\u003c\/p\u003e\n\u003cp\u003eThis amp was originally part of a $27,000 Linn system circa 2000, that with inflation would be nearly $50k today.\u003c\/p\u003e\n\u003cp\u003eIt features a dual-mono design for \"maximum separation and performance\" that's completely isolated on one chassis.\u003c\/p\u003e\n\u003cp\u003eYou won't find this on another amp anywhere near this price today.\u003c\/p\u003e\n\u003cp\u003ePlus this is 230V compatible with the flick of a rear switch and fuse swap.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrom a 1999 Stereophile review written by the one and only Michael Fremer:\u003c\/strong\u003e\u003cbr\u003e\u003cem\u003eThe 5105 stereo power amp is a wideband (2 Hz—50 kHz) dual-mono design: two separate amplifiers sharing the same chassis but isolated from each other and from ground. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe circuit is direct-coupled and servo-controlled, meaning there are no potentially sound-degrading coupling capacitors in the signal path. A signal-sensing circuit automatically powers the amplifier from Standby mode. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.stereophile.com\/content\/linn-av-51-system-sght-review-page-3\" rel=\"noopener\" target=\"_blank\"\u003eClick here to read the full review.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSkyFi Service Notes:\u003c\/strong\u003e\u003cbr\u003e• Replaced main filters, all SMD caps, and a number of other caps.\u003cbr\u003e• Most importantly we performed the official Linn service bulletin on this model related to a nearly 20-year old recall.\u003cbr\u003e• We contacted Linn for exact specifics on this service bulletin, and then changed the two 63V 10000uF capacitors to 80V 6800uF as directed.\u003cbr\u003e• Tests with perfect channel balance up to 100W per channel into 8 ohms.\u003cbr\u003e• Sounds excellent on listening tests.\u003c\/p\u003e\n\u003cp\u003e*Please note the Linn speaker adapters\/connectors are *not* included with this listing. \"BFA (British Federation of Audio) safety compliant connector was developed for use on certain high quality audio amplifiers from Arcam, Linn, and Cyrus.\"\u003c\/p\u003e\n\u003cp\u003eWe don't have any in the shop to include right now, but you can easily find them from several sources online. Search for  BFA Speaker Connectors. Or if you're like most of our Linn fans you probably already have speaker cables terminated with the proper Linn adapters!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eMore from Linn:\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe new Linn AV 5105 Stereo Power Amplifier is a compact, high quality stereo 400 Watt power amplifier. It is engineered to complement all the other components in an AV 51 System and is constructed to match the AV 5103 System Controller in style and performance.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe AV 5105 Stereo Power Amplifier combines high output power, ruggedness and ease of use with the accuracy that results from Linn’s passion for sound quality, and draws on many years of experience in the design and manufacture of high quality audio power amplifiers.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003ePower, precision and high signal handling quality mean that the AV 5105 can perfectly reproduce the most dramatic, subtle and complex sound effects simultaneously. It is a versatile, stackable design that can also accommodate active modules internally for optimised loudspeaker control.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe AV 5105’s low operating temperature and sophisticated protection circuitry helps make it flexible. To permit remote location of the amplifier it also has auto turn-on and switch-off signal sensing circuitry, which automatically brings the amplifier out of standby. A fully regulated and integrated power supply makes the AV 5105 immune to mains voltage fluctuation or noise to ensure the accuracy and consistent performance required for the most intensely involving film and music sound experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManual:\u003c\/strong\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/Linn-AV-5105-AV5105_Owners_Manual.pdf?v=1721324609\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eLinn AV 5105 Stereo Power Amplifier Technical Specifications\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eType:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eCompact, high quality 400W stereo power amplifier\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFunction:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eDual mono design for maximum separation and performance with active crossover interface\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eConstruction:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eStandard stereo configuration for universal multi-amp and active installations. Alloy die-cast facia and pressed casework\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eControl Interfaces:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eSignal-sensing auto switch-on\/off for energy conservation or remote operation\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eInputs:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eDual RCA (Line in\/out)\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eOutputs:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eFour pairs per channel\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eProtection:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003eFully protected against overload, over-temperature, full short and overdrive protection\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eOutput Power:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e100 W \/ channel \/ 8 Ohms\u003cbr data-mce-fragment=\"1\"\u003e200 W \/ channel \/ 4 Ohms\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eMains Supply:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e115V T6.3A antisurge fuse (230V T3.15A antisurge fuse)\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eMax Inout Power:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e800 VA\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandby Power Consumption:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e5 VA\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDimensions:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e3.12\" H (inc. feet)\u003cbr data-mce-fragment=\"1\"\u003e14.86\" W\u003cbr data-mce-fragment=\"1\"\u003e13.85\" D\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eWeight:\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e14.33 lbs\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe SkyFi Testing Process for Solid State Amplifiers:\u003c\/strong\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale signs of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. \u003cbr\u003e\u003cbr\u003eWe then power up the unit carefully and run a simple 1k sine wave while monitoring the output on an oscilloscope for signs of distortion or noise. Finally, we run the amplifier to its full rated power into the appropriate resistive load provided by our Sencore amplifier tester. If there is an issue, it will usually be noticeable at this point. If everything reads clean, we will often test for THD (Total Harmonic Distortion) measured by our Keithley distortion meter, and compare it against the original manufacturers specifications. The amplifier then remains powered on to \"burn in\" on our test bench for a few hours to make sure there are no heat related issues. If there are balanced inputs available they will be also be tested.\u003cbr\u003e\u003cbr\u003eFinal testing involves pushing actual music thorough the amplifier. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage KEF speakers that we're very familiar with which quickly reveal any discrepancies. Some amplifiers will then move into our listening room where they are tested with our in-house reference speakers of choice.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Cables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - Hero Ascent Series RCA Interconnects - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - Silver Streak Summit Series RCA Interconnects - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - 8TC Ascent Series Speaker Cables - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better (Linn Adapters Not Included)\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-monocle-xl-speaker-cables-pair-new\" title=\"Kimber Kable - MONOCLE XL Summit Series Speaker Cables - SkyFi Audio\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Best \u003cspan data-mce-fragment=\"1\"\u003e(Linn Adapters Not Included)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - BiFocal XL Summit Series Bi-Wire Speaker Cables - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-bifocal-xl-speaker-cables-bi-wire-pair-new\" target=\"_blank\"\u003eKimber Kable - Bi-Wire Speaker Cables\u003c\/a\u003e - Best If Applicable \u003cspan data-mce-fragment=\"1\"\u003e(Linn Adapters Not Included)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Kimber Kable - PK14 Base Series Power Cord - SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-base-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-palladian-power-cord-brand-new\" title=\"Kimber Kable - PK14 Palladian Summit Series 14AWG Power Cord - SkyFi Audio\" target=\"_blank\"\u003eKimber Kable - 14AWG (Gauge) Power Cords\u003c\/a\u003e - Best\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eItem\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eIncluded\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eOriginal Box\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eNo - Not Included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eManual\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eNo - Online Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eRemote\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eNo - Not Applicable\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eCables\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003eYes - Power Only\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003ePhysical Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e7 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e\u003cb data-mce-fragment=\"1\"\u003eWorking Condition\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"top\" data-mce-fragment=\"1\"\u003e\n\u003cp align=\"center\" data-mce-fragment=\"1\"\u003e\u003cspan face=\"Helvetica Neue\" size=\"2\" color=\"#000000\" data-mce-fragment=\"1\"\u003e10 \/ 10\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE?\u0026amp;autoplay=1\u0026amp;mute=1\" height=\"720\" width=\"1280\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Linn","offers":[{"title":"Default Title","offer_id":45641314861310,"sku":"101942","price":990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/linn-av-5105-dual-mono-design-amplifier-100w-x-2-821.jpg?v=1764962709"},{"product_id":"jadis-845se-845-se-triode-monoblock-amplifier-pair-barely-used","title":"Jadis 845SE Triode Monoblock Amplifier Pair, Barely Used, w\/Free Shipping","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eSuper Rare Jadis 845 tube based monoblock amplifiers. Beautifully made in France.\u003c\/p\u003e\n\u003cp\u003eCame form an avid Jadis collector, who was in the process of putting together a huge Jadis system that was unfortunately never finished.\u003c\/p\u003e\n\u003cp\u003eWe had a total of three sets available - one set is lightly used and the others are new in box.  This is the last set. \u003c\/p\u003e\n\u003cp\u003eWe hooked them up to our \u003ca href=\"https:\/\/skyfiaudio.com\/collections\/just-arrived\/products\/wilson-audio-x-1-grand-slamm-flagship-speakers-restored\" title=\"WILSON AUDIO X-1 GRAND SLAMM FLAGSHIP SPEAKERS - RESTORED\"\u003eWilson X-1 Grand SLAAM \u003c\/a\u003espeakers and were treated to the best dynamics and ease we've ever heard from them by FAR. \u003c\/p\u003e\n\u003cp\u003eThis monoblock amp pair comes with the original tubes with very low hour tubes (just for testing), the original manual, and original brochure. They are near mint with no significant signs of use.\u003c\/p\u003e\n\u003cp\u003eConsecutive serial numbers 079 and 080 - Low production. This model is also no longer in production.Retail price in 1992 was $20,000 ($38,000 in today's dollars).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e:\u003cbr\u003eThese ship for free anywhere in the contiguous 48 states. Worldwide shipping also available for an additional $400 fee.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSkyFi Technical Notes:\u003c\/b\u003e\u003cbr\u003eThese amps were recently recapped with brand new parts sourced directly from Jadis in France at a significant expense.\u003c\/p\u003e\n\u003cp\u003eAll 8 power supply caps (the large blue ones visible) were replaced. Working like new.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eBrand New\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA Inputs and 5 Way Binding Posts for Speakers, IEC Removable Power Cord\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eSmooth, uncolored, undistorted natural and clean\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e8\/10 = Very Good. Excellent front faceplate, one minor flaw on chassis side or top. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eWill be packed using our highly developed in-house process and custom packing materials.\u003ciframe title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE?\u0026amp;autoplay=1\u0026amp;mute=1\" height=\"720\" width=\"1280\"\u003e\u003c\/iframe\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003eType- Monoblock power amplifier pure class A \u003cbr\u003eBias- Autobias\u003cbr\u003ePower- 40W class-A\u003cbr\u003eBandwidth- 20Hz to 38KHz @-3dB\u003cbr\u003eSensibility- 560 mV\u003cbr\u003eNumber of blocks- 2\u003cbr\u003eTubes list- 845 x 4 EL84 x 4 ECC82 x 2 ECC83 x 2\u003cbr\u003eWeight- 40 Kg per bloc\u003cbr\u003eConsumption- 230 VA each\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003e68x30x29cm\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e200 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR. \u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use a modern Amplitrex AT-1000 Professional Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. \u003cbr\u003e\u003cbr\u003eWe document the results of each tube and replace any weak or suspect tubes before proceeding. \u003cbr\u003e\u003cbr\u003eWhen we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable.\u003cbr\u003e\u003cbr\u003eIf everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged.\u003cbr\u003e\u003cbr\u003eOnce we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation. \u003cbr\u003e\u003cbr\u003eWe start by feeding the input of the amplifier with a low level 1 KHz test signal, slowly increasing its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention. \u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics. \u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. \u003cbr\u003e\u003cbr\u003eFor tube amps we like to run this test at least twice.\u003cbr\u003e\u003cbr\u003eThis allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e","brand":"Jadis","offers":[{"title":"Default Title","offer_id":45698627961086,"sku":"101489","price":20490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/jadis-845se-triode-monoblock-amplifier-pair-barely-used-w-free-shipping-959.jpg?v=1774461248"},{"product_id":"mcintosh-mc255-5-channel-solid-state-amplifier-new","title":"McIntosh MC255 5-Channel Solid State Amplifier - NEW","description":"\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" target=\"_blank\"\u003eClick here\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" target=\"_blank\"\u003eClick here\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e250 Watts x 3 Channels; 200 Watts x 5 Channels\u003c\/li\u003e\n\u003cli\u003eTripleView™ Power Output Meter\u003c\/li\u003e\n\u003cli\u003eMore than 100% increase in Dynamic Headroom\u003c\/li\u003e\n\u003cli\u003eDynamic Power Manager\u003csup\u003e®\u003c\/sup\u003e; Power Guard\u003csup\u003e®\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for home theaters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eGive your home theater the power it deserves with the MC255 5-Channel Home Theater Power Amplifier. The MC255 features our striking new TripleView\u003csup\u003e™\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003ePower Output Meter that independently indicates the real time power reading of the amplifier’s three front channels. Instead of three separate meter windows each housing a single meter as found on our previous 5-channel home theater amplifier, the easy-to-read, 15” (38 cm) wide TripleView features three of our traditional mechanical meters in a single meter enclosure.\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eWhile a totally new design, each of the three peak responding pointers in the TripleView meter have the same enticing motion that McIntosh meters are known for and function at the same high level as any of our meters. The enchanting look and welcoming glow of the TripleView meter is sure to draw interest from friends and family, but its trademarked blue lighting can be turned off so as not to compete with your TV or movie screen.\u003c\/p\u003e\n\u003csection class=\"site-wrap f-fix\"\u003e\n\u003csection class=\"main f-fix\"\u003e\n\u003cdiv class=\"product-page\"\u003e\n\u003cdiv class=\"product-description\"\u003e\n\u003cdiv class=\"wrapper\"\u003e\n\u003cdiv class=\"odd-even-col\"\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eBesides the new TripleView meter, the MC255 has received many other performance upgrades to deliver an unforgettable cinema experience in your home theater. Filter capacity has been increased by 50% which has more than doubled dynamic headroom from 1.7dB to 3.6dB – a key feature in a home theater amplifier – as well as improving the performance of low frequencies. When using just the front left, center and right channels, power output has been increased by 25% from 200 Watts per channel (WPC) to 250 WPC. When using all 5 channels, each will receive a healthy 200 WPC. Regardless of how many channels are used, the full 200 or 250 Watts is delivered to either 4 or 8 Ohm speakers via our Dynamic Power Manager\u003cspan\u003e \u003c\/span\u003e(DPM) technology.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe MC255 runs cool and quiet thanks to four of our McIntosh Monogrammed Heatsinks\u003c\/span\u003e\u003cspan\u003e which are connected to advanced high current output transistors that efficiently and silently cool the amplifier; as a result, noisy cooling fans that can interfere with the movie soundtrack are not needed. A quiet, specially wound toroidal isolation power transformer also helps keep noise to a minimum. Speaker terminals have been updated to our standard gold-plated binding posts that prevent corrosion and ensure a quality signal is sent to your home theater speakers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eTraditional McIntosh knobs now adorn the front panel to control the meter lights and power function. Direct LED backlighting has been added to the front panel for improved color accuracy and durability. Our eco-friendly power management system that will turn the amplifier off after a set amount of time when no input signal has been detected is also now included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eWhile the MC255 has received many upgrades, it also comes with hallmark McIntosh technologies such as Power Guard that prevents potential speaker damage caused by clipping and over-driving of the amplifier, and Sentry Monitor\u003csup\u003e™\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003ethat protects against short-circuits by disengaging the output stage should the current ever exceed safe operating levels (it then resets automatically when operating conditions return to normal). Both balanced and unbalanced inputs are included to connect your\u003cspan\u003e \u003c\/span\u003ehome theater processor to the MC255 home theater amplifier.\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC255 can be used to power a conventional 5-channel home theater; it can be paired with either our MI128 or\u003cspan\u003e \u003c\/span\u003eMI254 digital amplifiers in home theaters that have additional surround sound speakers for use with object-based 3D audio formats such as Dolby\u003csup\u003e®\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eAtmos, DTS:X\u003csup\u003e™\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003eand Auro-3D\u003csup\u003e®\u003c\/sup\u003e; or it can be used in a two zone configuration with the three front channels used at 250 WPC in one zone and the two surround sound channels used at 200 WPC in a second audio zone in your home.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC255 bears the classic McIntosh design of a black glass front panel with the TripleView meter, illuminated logo, control knobs, and aluminum end caps. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eBrand Background:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFounded in 1949, McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Our iconic blue Watt output meter is globally recognized as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience Ð and truly live their music.\u003c\/p\u003e\n\u003cp\u003eMcIntosh products are designed and handcrafted at our Binghamton, NY factory by our dedicated employees who share a passion for music and the McIntosh heritage. Since our inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon JohnsonÕs inauguration speech to Woodstock to the famous Grateful Dead ÒWall of Sound,Ó McIntosh has not only witnessed history, we have shaped it. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eConnections:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRCA, XLR, Speaker Binding Posts\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnit, Power Cord, Manual\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePacking:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Sealed McIntosh Carton\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e17-1\/2\" (44.5cm) x 9-7\/16\" (23.9cm) (including feet) x 21\" (53.3cm) (including front panel and cables)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eShipping: 122lbs\u003cstrong\u003e \u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eLink to Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eClick \u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/mc255om02.pdf?rev=20dd261380484ef28222b97b65444b87\u0026amp;revision=20dd2613-8048-4ef2-8222-b97b65444b87\"\u003eHere\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRecommended\u003c\/strong\u003e \u003cstrong\u003eCables:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-balanced-audio-cables-xlr\" title=\"McIntosh Balanced Audio Cables (XLR) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Balanced Audio Cables (XLR)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-audio-cables-rca\" title=\"McIntosh Audio Cables (RCA) on SkyFi Audio\" target=\"_blank\"\u003eMcIntosh Audio Cables (RCA)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Speaker Cables on SkyFi Audio\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-speaker-cables\" target=\"_blank\"\u003eMcIntosh Speaker Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"McIntosh Power Control Cables\" href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-power-control-cables\" target=\"_blank\"\u003eMcIntosh Power Control Cables\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdd\u003e\n\u003cmeta charset=\"utf-8\"\u003eFTC Power Output Rating 250 W\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003ePower Output per Channel\u003c\/dt\u003e\n\u003cdd\u003e3 Front Channels only: 250 W into 4 or 8 ohms\u003cbr\u003eAll 5 Channels: 200 W into 4 or 8 ohms\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eNumber of Channels\u003c\/dt\u003e\n\u003cdd\u003e5\u003cbr\u003e(can also be used as a 2-zone amplifier with 3 channels in zone A and 2 channels in zone B)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eTotal Harmonic Distortion\u003c\/dt\u003e\n\u003cdd\u003e0.005%\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eS\/N below rated output\u003c\/dt\u003e\n\u003cdd\u003e108dB\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eDynamic Headroom\u003c\/dt\u003e\n\u003cdd\u003e3.6dB\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eDamping Factor\u003c\/dt\u003e\n\u003cdd\u003e\u0026gt;70 @ 4 ohms\u003cbr\u003e\u0026gt;140 @ 8 ohms\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eRated Power Band\u003c\/dt\u003e\n\u003cdd\u003e20Hz to 20kHz\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFrequency Response\u003c\/dt\u003e\n\u003cdd\u003e+0, -0.25dB from 20Hz to 20kHz\u003cbr\u003e+0, -3dB from 10Hz to 100kHz\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eControl\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eRemote Power Control\u003c\/dt\u003e\n\u003cdd\u003eYes, 5 or 3 + 2 Channel\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMulti-Channel DB25 Cable\u003c\/dt\u003e\n\u003cdd\u003eNo\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eConnectivity\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eSpeaker Binding Post Type\u003c\/dt\u003e\n\u003cdd\u003eStandard\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eGeneral Specifications\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eCircuit Configuration\u003c\/dt\u003e\n\u003cdd\u003ePush-Pull Complementary\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eCircuit Design\u003c\/dt\u003e\n\u003cdd\u003eSolid State\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMono Bridge\u003c\/dt\u003e\n\u003cdd\u003eNo\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMono Parallel\u003c\/dt\u003e\n\u003cdd\u003eNo\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eOutput Type\u003c\/dt\u003e\n\u003cdd\u003eDirect Coupled with Dynamic Power Manager\u003csup\u003e®\u003c\/sup\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMeters\u003c\/dt\u003e\n\u003cdd\u003eTripleView™ Power Output Meter\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMeter Light Switch\u003c\/dt\u003e\n\u003cdd\u003eYes\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eBalanced Input\u003c\/dt\u003e\n\u003cdd\u003e5\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFront Panel\u003c\/dt\u003e\n\u003cdd\u003eGlass\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eIllumination\u003c\/dt\u003e\n\u003cdd\u003eDirect LED\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eChassis Style\u003c\/dt\u003e\n\u003cdd\u003eInverted\u003c\/dd\u003e\n\u003cdd\u003e\u003c\/dd\u003e\n\u003cdd\u003e\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" target=\"_blank\"\u003eClick here\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eto schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" target=\"_blank\"\u003eClick here\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SkyFi Audio","offers":[{"title":"Default Title","offer_id":46206896406782,"sku":"","price":10000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc255-5-channel-solid-state-amplifier-new-801.jpg?v=1737754688"},{"product_id":"mcintosh-mc2000-tube-amplifier-new-old-stock-sealed-box","title":"McIntosh MC2000 Tube Amplifier - NOS New Old Stock Sealed Box - UBER RARE!","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eThe 50th Anniversary MC2000 is one of the rarest and most collectible amplifiers from McIntosh. However this is not a normal MC2000...\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYes, the MC2000 box you see in this listing has never been opened and is in its factory sealed box.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThis amplifier was purchased from a collector along with the other three NOS items we recently listed. This amplifier was stored in a temperature and humidity controlled unit for all these years. \u003cbr\u003e\u003cbr\u003eIf you're lucky enough to visit the factory in Binghamton, you may have spotted an MC2000 on a pedestal in their offices with a special plaque honoring its designer Sidney A. Corderman.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBesides collectibility there are many reasons the MC2000 is wonderful:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e1)\u003c\/strong\u003e Like many McIntosh anniversary models it's gold plated, which makes it unique and gorgeous.\u003cbr\u003e\u003cstrong\u003e2)\u003c\/strong\u003e It features a traditional McIntosh amplifier layout with large blue meters, not a less interesting sled design like most tube amps.\u003cbr\u003e\u003cstrong\u003e3)\u003c\/strong\u003e The glass window in the front allows for a full view of the warm glow of the power tubes.\u003cbr\u003e\u003cstrong\u003e4)\u003c\/strong\u003e It has more power output than the MC275 giving it enough horsepower to drive a more complex and demanding speaker load - 130W per side.\u003cbr\u003e\u003cstrong\u003e5) \u003c\/strong\u003eIt's a dual mono design featuring two amplifiers in a single chassis.\u003c\/p\u003e\n\u003cp\u003eTo check out another MC2000 we have for sale click \u003ca href=\"https:\/\/skyfiaudio.com\/products\/mcintosh-mc2000-50th-anniversary-tube-amplifier-collectors-set?_pos=1\u0026amp;_psq=mc2000\u0026amp;_ss=e\u0026amp;_v=1.0\" rel=\"noopener\" target=\"_blank\"\u003ehere\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore on Sidney A. Corderman:\u003c\/strong\u003e\u003cbr\u003eSidney joined McIntosh in 1951 and stayed with the company until 1993 when he retired. During his distinguished tenure, he had direct hands-on involvement in nearly every product McIntosh designed and became famous for.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eEven after retiring, he came back to work on select projects, including the MC275 Gordon Gow Commemorative Edition Vacuum Tube Amplifier, C22 Frank McIntosh Commemorative Edition Vacuum Tube Preamplifier, MC2000 50th Anniversary Limited Edition Vacuum Tube Amplifier, C2200 Vacuum Tube Amplifier, and MA2275 Vacuum Tube Integrated Amplifier. He also remained on the Board of Directors until 2003.\u003c\/p\u003e\n\u003cp\u003e\"Sidney was a brilliant man and a mentor to everyone in the McIntosh engineering department who had the privilege of working for him,\" said McIntosh President Charlie Randall. \"I started with the company in 1988 and was lucky enough to work with him. Later, he was instrumental in me being named Vice-President of Engineering in 1999 and then President in 2001. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMcIntosh Performance Features Include:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Power Output\u003c\/span\u003e\u003cbr\u003eThe MC2000 is a Dual Mono design which consists of two entirely separate Mono, 130 watt vacuum tube power amplifiers, each with its own power supply. Output impedance connections are provided for 2, 4 and 8 ohm loudspeaker loads.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Patented Bifilar Wound Transformers and Output Circuit\u003c\/span\u003e\u003cbr\u003eThe power output sections utilize the famous McIntosh patented Unity Coupled Circuit with a Bifilar Wound Output Transformer for low distortion, extended frequency response and cool operating output tubes.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Balanced and Unbalanced Inputs\u003c\/span\u003e\u003cbr\u003eBoth Balanced and Unbalanced Inputs are included. Balanced connections guard against induced noise and allow long cable runs without compromising sound quality.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Illuminated Power Meters\u003c\/span\u003e\u003cbr\u003eTwo accurate, peak responding output meters continuously indicate the power delivered by each channel. A Peak Hold Meter Mode indicates the maximum power reached over a given time span. The meter illumination can be turned off so as to not detract from the listening environment, if desired.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003e· Ceramic Tube Sockets with Gold Contacts\u003c\/span\u003e\u003cbr\u003eCeramic tube sockets with gold plated contacts provide firm, reliable connections that are not affected by atmospheric contamination. Output tube sockets include Air-Pipe cooling at their bases.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrand Background:\u003c\/b\u003e\u003cbr\u003eMcIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSingle Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eXLR, RCA, IEC Power, Speaker Binding Posts\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003eNew Old Stock (NOS), factory sealed, never opened, never touched since the day it left the McIntosh factory in Binghamton NY.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eComplete Kit as it Left the Factory\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003ePower Output\u003cbr\u003e130 watts into 8, 4 or 2 ohm loads is the minimum sine wave continuous average power output per channel from 20Hz to 20,000Hz with both channels operating.\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003e0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power per channel from 20Hz to 20,000Hz with both channels operating.\u003c\/p\u003e\n\u003cp\u003eIntermodulation Distortion\u003cbr\u003e0.5% maximum intermodulation distortion if instantaneous peak power output does not exceed twice the output rating per channel with both channels operating, for any combination of frequencies from 20Hz to 20,000Hz.\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003e20 Hz to 20,000 Hz\u003c\/p\u003e\n\u003cp\u003eFrequency Response (at 1 watt)\u003cbr\u003e+0, -0.25 dB from 20 Hz to 20,000 Hz\u003cbr\u003e+0, -3 dB from 10 Hz to 100,000 Hz\u003c\/p\u003e\n\u003cp\u003eHum and Noise (A-Weighted)\u003cbr\u003e100 dB below rated output\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003eGreater than 18\u003c\/p\u003e\n\u003cp\u003eOutput Load Impedance\u003cbr\u003e2, 4 or 8 ohms\u003c\/p\u003e\n\u003cp\u003eInput Impedance\u003cbr\u003e20K Ohms Unbalanced (RCA Phono Jacks)\u003cbr\u003e40K Ohms Balanced (XLR Connectors)\u003c\/p\u003e\n\u003cp\u003eInput Sensitivity (Switch Selectable)\u003cbr\u003e2.5 volts for rated output\u003cbr\u003e1.2 volts for rated output (1 volt for 100 watts output)\u003c\/p\u003e\n\u003cp\u003eTubes Compliment\u003cbr\u003e8 x KT88 or 6550 Output Tubes\u003cbr\u003e4 x 12AX7A Input Tubes\u003cbr\u003e2 x 12AT7 Driver Tubes\u003c\/p\u003e\n\u003cp\u003ePower Requirement\u003cbr\u003e120 Volts, 50\/60Hz at 4.8 Amps\u003c\/p\u003e\n\u003cp\u003eFinish\u003cbr\u003eStainless Steel Chassis with Titanium Gold Super Mirror Finish, Black Transformer Enclosures, Black Base, Glass Front Panel with gold plated Handles and Knobs\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eDimensions:\u003cbr\u003e\u003c\/b\u003e17-3\/4 inches (45.1cm) wide by 11 inches (27.9cm) high. Depth behind front panel is 18-3\/4 inches (47.6cm). Handle clearance required in front of the mounting panel is 1-5\/8 inches (4.1 cm).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cbr\u003eAmplifier: 135 pounds (61.2 kg) net, 144 pounds (65.3 kg) in shipping carton\u003cbr\u003eAccessories: 18 pounds (8.2 kg) in shipping carton\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eReviews:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.stereophile.com\/tubepoweramps\/283\/index.html\" target=\"_blank\"\u003eStereophile Review\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/McIntosh-MC2000-Manual-Full-Color.pdf?v=1675440984\" target=\"_blank\"\u003eMcIntosh MC2000 Manual - In Full Color!\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/McIntosh-MC2000-Sales-Brochure.pdf?v=1675440984\" target=\"_blank\"\u003eOriginal MC2000 Sales Brochure \"New Millennium Edition, Limited Production, Designed by Sidney A. Corderman\"\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-silver-streak-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR. \u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use a modern Amplitrex AT-1000 Professional Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. \u003cbr\u003e\u003cbr\u003eWe document the results of each tube and replace any weak or suspect tubes before proceeding. \u003cbr\u003e\u003cbr\u003eWhen we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable.\u003cbr\u003e\u003cbr\u003eIf everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged.\u003cbr\u003e\u003cbr\u003eOnce we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation. \u003cbr\u003e\u003cbr\u003eWe start by feeding the input of the amplifier with a low level 1 KHz test signal, slowly increasing its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention. \u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics. \u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. \u003cbr\u003e\u003cbr\u003eFor tube amps we like to run this test at least twice.\u003cbr\u003e\u003cbr\u003eThis allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":46605539082494,"sku":"106254","price":29990.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc2000-tube-amplifier-nos-new-old-stock-sealed-box-uber-rare-148.jpg?v=1756180265"},{"product_id":"mcintosh-mc901-hybrid-drive-monoblock-amplifier-pre-loved","title":"McIntosh MC901 Hybrid Drive MonoBlock Amplifier Pair - Pre-Loved","description":"\u003cp\u003e\u003cstrong\u003eThis is the first pre-owned pair of McIntosh MC901 we're offering for sale. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThese are pre-owned MC901's that come with a SkyFi 1-year warranty (no McIntosh warranty). \u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePrice listed is MSRP. Please call to order and discuss pricing.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupport your local McIntosh Dealer!\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003cbr\u003eThese are stunning hybrid drive monoblock amplifiers from McIntosh. New today they're $22,000 each!\u003cbr\u003e\u003cbr\u003eThey deliver a whopping 300 watts of vacuum tube power PLUS another 600 watts of solid state. Best yet, since this unit utilizes McIntosh Autoformers it can deliver the same power to either a 2, 4, or 8 Ohm load. \u003cbr\u003e\u003cbr\u003eThis pair are in great shape and only had one owner who took super care of them. You'd need to give them a close look to tell they were used.\u003cbr\u003e\u003cbr\u003eIn testing we decided to drive a pair of Sonus Faber floorstanding speakers. Everything sounded incredible  playing though these amplifiers and truly three-dimensional. The airplane crash from the first cut on Pink Floyd's \"The Wall\" actually rumbled our walls.\u003cbr\u003e\u003cbr\u003eIncluded along with the MC901's are their original manuals, boxes, and tube cages.\u003c\/p\u003e\n\u003cp\u003eWe also have a pair of HRS E1 isolation bases designed for these amplifiers listed \u003ca href=\"https:\/\/skyfiaudio.com\/products\/hrs-e1-isolation-bases-19-x-29-pair-steel-amplifier-stands-for-mcintosh-mc901-amplifiers-and-others?_pos=1\u0026amp;_sid=5332fd5fc\u0026amp;_ss=r\" target=\"_blank\"\u003ehere\u003c\/a\u003e.  \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003eSkyFi Cosmetic Notes:\u003c\/b\u003e\u003cbr\u003eOne heat sink is slightly discolored on the top edge, likely due to UV exposure over time. Light marks are present on some of the stainless surfaces. Overall, very good shape.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003eSkyFi Technical Notes:\u003c\/b\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eAll of the tubes were tested on our modern Amplitrex AT1000. The driver tubes all tested well. Two of the output tubes were slightly weaker than the rest. We replaced the suspect tubes with McIntosh labeled KT88's and selected four tightly matched quads, carefully placing them for optimal performance. Both the solid state and tube output sections tested to rated power with ease on both amplifiers.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrom Mcintosh:\u003c\/strong\u003e\u003cbr\u003e• Includes our Hybrid Drive™ technology that uses the best of vacuum tubes and solid state to produce the best sound performance\u003cbr\u003e• The ultimate solution for bi-amping loudspeakers: 300 Watt vacuum tube amplifier and 600 Watt solid state amplifier on one chassis\u003cbr\u003e• Vacuum tube section powers mid and upper drivers\u003cbr\u003e• Solid state section drives power hungry woofers\u003cbr\u003e• DualView™ Power Output Meter\u003cbr\u003e\u003cbr\u003eMcIntosh has been perfecting vacuum tube amplifiers since the 1940s and solid state amplifiers since the 1960s. Our amplifiers have been used at many historic events including presidential inaugurations and Woodstock, as well as in landmark sound systems like the Grateful Dead's Wall of Sound and Despacio. From that heritage comes a truly one-of-a-kind home audio amplifier only we could dream of, design and build as the ultimate solution for bi-amping loudspeakers: the McIntosh MC901 Dual Mono Amplifier.\u003c\/p\u003e\n\u003cp\u003eThe MC901 is a monoblock amplifier that drives a single speaker. But it is unlike any other monoblock amplifier. What makes the MC901 so unique is that it's two amplifiers combined into one. Adding to the uniqueness is that each amplifier is of differing design philosophies: the MC901 consists of a 300 Watt vacuum tube amplifier attached to a 600 Watt solid state amplifier on one unified chassis.\u003c\/p\u003e\n\u003cp\u003eThe MC901 includes our Hybrid Drive™ technology that uses the best of vacuum tubes and solid state to produce the best sound performance. The 300 Watt vacuum tube portion powers the speaker's mid and upper drivers via eight KT88 output tubes, plus four 12AT7 and two 12AX7A signal tubes; the solid state section delivers 600 Watts of dedicated power to the power hungry woofers. The 300 Watt vacuum tube amp in the MC901 uses our patented Unity Coupled Circuit output transformer – the same technology McIntosh was founded on in 1949 – to deliver its full 300 Watts into almost any speaker regardless if it has 2, 4 or 8 Ohm impedance. Similarly, the 600 Watt solid state amp delivers its full 600 Watts into a 2, 4 or 8 Ohm impedance speaker via our Autoformer™ technology.\u003c\/p\u003e\n\u003cp\u003eVacuum tubes do not perform at their best when they are amplifying lower frequencies that are not being used by the loudspeaker. With the MC901, the vacuum tube amp will not be burdened with low end reproduction as the solid state section will drive these frequencies. The two amplifier sections of the MC901 are designed to work together in a synergistic relationship and are specifically engineered to assure that each section only amplifies its intended frequencies. Each amplifier section has its own discrete power supply so neither siphons power or performance away from the other. All of this results in easy bi-amping with unparalleled performance and sound reproduction from your speakers.\u003c\/p\u003e\n\u003cp\u003ePrior to the MC901, bi-amping a speaker required two separate amplifiers. It also required an external crossover, along with a lot of trial and error, to properly configure the two detached amplifiers so they worked together as best as possible. The MC901 solves this issue thanks to its internal, adjustable crossover with the controls easily accessible on the top of the unit. These adjustable crossover filters allow you to optimize the performance of both amplifier sections to your listening preferences. Relative gain levels for each amplifier section can be adjusted from -6dB to +3dB. A direct feed can also be connected to each amplifier section, thus bypassing the filters.\u003cbr\u003eLike virtually all McIntosh amplifiers, the MC901 features an iconic \"McIntosh Blue\" Watt meter, which has come to be recognized around the world as a symbol of quality home audio. And just like the MC901 itself is a new design, so too is its meter with the introduction of our new DualView™ Power Output Meter. The DualView meter features two of our traditional, fast responding mechanical meters stacked above and below each other in a single meter window; one meter is dedicated to the 300 Watt vacuum tube amp and the other to the 600 Watt solid state amp. Each meter operates independently of the other and displays the real time power reading of each amplifier section.\u003c\/p\u003e\n\u003cp\u003eWhile an entirely new design, the MC901 comes with the technology one would expect from a McIntosh amplifier:\u003c\/p\u003e\n\u003cp\u003e• Power Guard® that monitors and adjusts the input signal in the 600 Watt solid state amplifier section in real time, then makes unobtrusive adjustments to prevent harsh sounding distortion and potential speaker damaging clipping.\u003cbr\u003e• Power Guard Screen Grid Sensor™ (SGS). The 300 Watt vacuum tube amplifier section of the MC901 breaks new ground as it's our first amplifier to feature our new • Power Guard SGS™ technology. Power Guard SGS helps prevent premature vacuum tube failure by monitoring the screen grid current in the KT88 output vacuum tubes. If the current becomes too high, a circuit in Power Guard SGS is activated which then dynamically attenuates the input signal in real time to keep the vacuum tubes operating at safe levels.\u003c\/p\u003e\n\u003cp\u003e• Sentry Monitor™ observes the output current and shuts the amplifier off if it ever exceeds safe limits.\u003cbr\u003e• Quad Balanced design that cancels virtually all noise and distortion that may have crept into the audio signal.\u003cbr\u003e• Power Control that can send power on\/off signals to other connected McIntosh components for easy system power up and shutdown.\u003cbr\u003e• Our patented, gold-plated Solid Cinch™ speaker binding posts that easily and securely attach the speaker cables.\u003cbr\u003e• McIntosh Monogrammed Heatsinks™ that are connected to advanced high current output transistors efficiently cool the solid state amplifier section.\u003cbr\u003e• Our Power Management System that will turn the entire unit off after a set amount of time when no input signal has been detected.\u003c\/p\u003e\n\u003cp\u003eAlthough the MC901 may look different than any McIntosh product before it, a quick glance reveals signature McIntosh design cues. The top is highlighted by a series of diagrams printed on glass that outline the basic circuitry and specifications of the unit, along with a glass nameplate trimmed with a circular aluminum ring that's finished to match the front panel endcaps. The sides are adorned with vintage McIntosh-styled die cast aluminum name badges. Two classic McIntosh knobs are located on the front of the polished stainless steel chassis, and direct LED backlighting illuminates the DualView meter, McIntosh logo and the lettering on the black glass front panel.\u003cbr\u003eThe uncompromising level of fit and finish that is expected of a McIntosh product completes the MC901. It can be combined with a variety of preamplifiers, turntables, CD players, media streamers, speakers and other specialty products to form a complete home audio system.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrand Background:\u003c\/b\u003e\u003cbr\u003eMcIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSingle Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA, XLR, 5 Way Speaker Binding Posts, IEC Power, Power Control\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eBig beautiful musical sound with little fatigue.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e8\/10 = Very Good. Excellent front faceplate, one minor flaw on chassis side or top. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eUnit, Box, Manual\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOriginal MSRP:\u003c\/b\u003e\u003cbr\u003e$44,000.00\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003ePower Output per Channel\u003cbr\u003eSolid State section: 600 Watts @ 2, 4 or 8 Ohms\u003cbr\u003eVacuum Tube section: 300 Watts @ 2, 4 or 8 Ohms\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eNumber of Channels\u003cbr\u003e1\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTotal Harmonic Distortion\u003cbr\u003eSolid State section: 0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz\u003cbr\u003e\u003cbr\u003eVacuum Tube section: 0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eS\/N below rated output\u003cbr\u003eSolid State section: 122dB\u003cbr\u003eVacuum Tube section: 112dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDynamic Headroom\u003cbr\u003eSolid State section: 2.5dB\u003cbr\u003eVacuum Tube section: 1.2dB\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDamping Factor\u003cbr\u003eSolid State section: \u0026gt;40\u003cbr\u003eVacuum Tube section: \u0026gt;18\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eRated Power Band\u003cbr\u003eSolid State section: 20Hz to 20kHz\u003cbr\u003eVacuum Tube section: 20Hz to 20kHz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003eSolid State section:\u003cbr\u003e+0, -0.25dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3dB from 10Hz to 100,000Hz\u003cbr\u003e\u003cbr\u003eVacuum Tube section:\u003cbr\u003e+0, -0.5dB from 20Hz to 20,000Hz\u003cbr\u003e+0, -3dB from 10Hz to 70,000Hz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eGENERAL SPECIFICATIONS\u003cbr\u003eCircuit Configuration\u003cbr\u003eSolid State section: Quad Balanced\u003cbr\u003eVacuum Tube section: Unity Coupled\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCircuit Design\u003cbr\u003eSolid State and Vacuum Tube\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Bridge\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMono Parallel\u003cbr\u003eNo\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Type\u003cbr\u003eSolid State section: Autoformer™\u003cbr\u003eVacuum Tube section: Unity Coupled Output Transformer\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeters\u003cbr\u003eDualView™ Power Output Meter\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eMeter Light Switch\u003cbr\u003eYes\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBalanced Input\u003cbr\u003e3 (1 Solid State, 1 Vacuum Tube, 1 Composite)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFront Panel\u003cbr\u003eGlass\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIllumination\u003cbr\u003eDirect LED\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eChassis Style\u003cbr\u003ePolished stainless steel \u0026amp; black painted steel\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions - Each MC901:\u003c\/b\u003e\u003cbr\u003e17-17\/32\" (44.5cm) x 13-3\/8\" (34cm) x 29-17\/32\" (75cm)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight - Each MC901:\u003c\/b\u003e\u003cbr\u003e180 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-silver-streak-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR. \u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use a modern Amplitrex AT-1000 Professional Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. \u003cbr\u003e\u003cbr\u003eWe document the results of each tube and replace any weak or suspect tubes before proceeding. \u003cbr\u003e\u003cbr\u003eWhen we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable.\u003cbr\u003e\u003cbr\u003eIf everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged.\u003cbr\u003e\u003cbr\u003eOnce we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation. \u003cbr\u003e\u003cbr\u003eWe start by feeding the input of the amplifier with a low level 1 KHz test signal, slowly increasing its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention. \u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics. \u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. \u003cbr\u003e\u003cbr\u003eFor tube amps we like to run this test at least twice.\u003cbr\u003e\u003cbr\u003eThis allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":47062750822654,"sku":"106674","price":44000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc901-hybrid-drive-monoblock-amplifier-pair-pre-loved-167.jpg?v=1757443267"},{"product_id":"lamm-m1-2-reference-monoblock-amplifiers-class-a-tube-and-mosfet-hybrid","title":"Lamm M1.2 Reference Monoblock Amplifiers - Class A Tube and MOSFET Hybrid - w\/Free Shipping","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eThe Lamm M1.2 is a unique amplifier utilizing class A technology combined with a tube driven solid state output stage. MSRP for the pair when originally released was a hefty $17,290!\u003cbr\u003e\u003cbr\u003eThese amps sounded wonderful in our testing and are running strong at their rated output power. Perfect for someone who wants to try out a class A amplifier design. \u003cbr\u003e\u003cbr\u003eThis particular pair has the benefit of new tubes, plus the DC offset and bias were adjusted on both amplifiers for maximum performance.\u003cbr\u003e\u003cbr\u003eAlong with the amplifiers will be their original crates for safe transport, plus a printed copy of the Operating Manual on heavyweight paper.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb\u003eSkyFi Cosmetic Notes:\u003c\/b\u003e\u003cbr\u003eVery minor blemishes are present on the front of both amps. One amp has a tiny nick on the top surface of the face, the other amp has a small scratch on one of the handles. Cosmetic condition is excellent overall.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSkyFi Technical Notes:\u003c\/b\u003e\u003cbr\u003eThe switches on the back require a slight outward pull before they can be operated. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTube Notes: \u003cbr\u003e\u003c\/strong\u003eBoth amplifiers are now fitted with strong, balanced, 6N30P Russian 6922 equivalent tubes.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e\u003cbr\u003eThese monoblocks packed in their original wood transit crates will ship via truck freight anywhere within the lower 48 US States for free.\u003c\/p\u003e\n\u003cp\u003eWe can safely pack and palletize these amps to ship worldwide for an additional $400 fee. Local pickup welcome and we can also arrange a local courier depending on distance. Please contact us for details. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore from Lamm:\u003c\/strong\u003e\u003cbr\u003eA milestone In high-end amplification\u003c\/p\u003e\n\u003cp\u003eThe M1.2 Reference monoblock power amplifier represents a top of the line product in LAMM hybrid and solid-state audio equipment. It is the pinnacle of its designer’s professional career and a result of years of intensive research directed solely at attaining the most accurate reproduction of recorded music. Unique topology and application of the most advanced technological resources and processes bring the M1.2 Reference to a threshold of excellence in sound reproduction.\u003cbr\u003e\u003cbr\u003eDesign Elements\u003cbr\u003eA distinctive feature of the M1.2 Reference is its presentation of the extraordinary transparency of perceived sound which in turn assures the recreation of a three dimensional soundstage in the home, recording studio, etc. without boundaries and limitations. The M1.2 Reference is a masterful blend of design and engineering simplicity. It is a pure class A amplifier featuring high-speed MOS-FET transistors in the output stage with no overall feedback and special switch-selectable bias\/voltage settings for 8- or 4-Ohm operation.\u003cbr\u003e\u003cbr\u003eThe bias setting switch assures the pure class A operation of the M1.2 Reference when matched with a speaker load of either 4 or 8 Ohms, whereas conventional class A designs double the power into 4 Ohms resulting in one fourth of the doubled power in class A and the rest in class AB (learn more about this in FAQ section of our website at lammdev.wpengine.com\/faq\/switch.html).\u003c\/p\u003e\n\u003cp\u003eThe M1.2 Reference is a hybrid design with one specially selected 6922 vacuum triode in the second stage.The M1.2 Reference is conservatively rated to deliver 110 Watts into 8 and 4 Ohms in pure class A operation (high and low impedance settings, respectively); 220 Watts into 2 Ohms, and 400 Watts into 1 Ohm (low impedance setting), continuous. The M1.2 Reference can drive any known speaker. The harmonic structure remains intact regardless of the speaker load, while the extreme clarity is maintained at all power levels.\u003cbr\u003e\u003cbr\u003eComponents\u003cbr\u003eEach amplifier is carefully constructed and hand-crafted with the finest materials and parts currently available, some of which include military graded low noise DALE metal film resistors; PRC wire wound resistors; ELECTROCUBE and ROEDERSTEIN film capacitors; high frequency switching grade CORNELL DUBILIER electrolytic capacitors; BOURNS multi-turn potentiometers; HAMMOND filter chokes; military graded low noise long life vacuum tubes; high quality heavy duty gold-plated binding posts and RCA jacks; gold-plated NEUTRIC XLR connectors, and CAMAC-type coaxial connectors from FISCHER.\u003cbr\u003e\u003cbr\u003eSpecial attention was given to designing the toroidal power transformer, which has no mechanical contact with either the transformer cover or the chassis and is suspended in a special encapsulant that almost completely absorbs even the residual mechanical vibrations. This plays a significant role in assuring the absolutely unique clarity and micro-resolution during sound reproduction.\u003c\/p\u003e\n\u003cp\u003eThe M1.2 _Reference_ works on all world AC line voltages. U.S. Patent No. D368,261; U.S. Patent No. 5,470,795; other patents pending.\u003cbr\u003e\u003cbr\u003eDrives to any known speaker\u003cbr\u003eThe harmonic structure remains intact regardless of the speaker load, while the extreme clarity is maintained at all power levels.\u003cbr\u003e\u003cbr\u003eUltra low-noise power transformer\u003cbr\u003eCustom-made toroidal power transformer has no mechanical contact with either the transformer cover or the chassis, assuring the absolutely unique clarity and micro-resolution during sound reproduction.\u003cbr\u003e\u003cbr\u003eTransformer hum reducer\u003cbr\u003eSpecial circuit reduces power transformer core saturation and residual mechanical hum.\u003cbr\u003e\u003cbr\u003eBias setting (load) switch\u003cbr\u003eSwitch-selectable biasing circuit maintains pure Class A operation of the output stage for all load conditions between 4-16 Ohms.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSingle Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA, XLR, IEC Power, Speaker Binding Post\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eBig beautiful musical sound with little fatigue.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e8\/10 = Very Good. Excellent front faceplate, one minor flaw on chassis side or top. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eMonoblocks, Wood Crates, plus a printed copy of the Operating Manual on heavyweight paper. \u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOriginal MSRP:\u003c\/b\u003e\u003cbr\u003e$17,290.00\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003eAmplifier Operation \u0026amp; Output Power:\u003cbr\u003e- Pure Class A operation\u003cbr\u003e- No overall feedback\u003cbr\u003e- 110W per channel (continuous into 8\/4 ohms, pure Class A)\u003cbr\u003e- 400W per channel (continuous into 2 ohms)\u003cbr\u003e- 600W per channel (continuous into 1 ohm)\u003cbr\u003e- Bias\/Voltage Settings:\u003cbr\u003e- Switch-selectable for 8- or 4-ohm operation\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTube \u0026amp; Transistor Configuration:\u003cbr\u003e- 1 specially selected 6922\/ECC88 vacuum triode tube per channel\u003cbr\u003e- 12 high-speed MOS-FET output transistors\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePower Supply:\u003cbr\u003e- Custom-made 850-VA toroidal power transformer\u003cbr\u003e- \"Soft-start\" circuit \u0026amp; vacuum tube rectifiers\u003cbr\u003e- Protects components from large in-rush currents at power-on\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance Specs:\u003cbr\u003e- Frequency response: 4 Hz – 155,000 Hz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePower Compatibility:\u003cbr\u003e- Operates on all world AC line voltages\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSound Quality Focus:\u003cbr\u003e- Designed for exceptional clarity and micro-resolution during sound reproduction\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions - Each Monoblock:\u003c\/b\u003e\u003cbr\u003e8.25\" (21cm) Width 17\" (43.2cm) Depth 19.5\" (49.5cm)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight - Each Monoblock:\u003c\/b\u003e\u003cbr\u003e68.5 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003cbr\u003e2003\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLink to Review:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.lammindustries.com\/wp-content\/uploads\/2022\/09\/M12_MonoStereo_June-2017_Croatia_Isak-1.pdf\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLink to Operating Manual:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/M1.2_MANUAL_text_only.pdf?v=1756914180\" rel=\"noopener\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-silver-streak-analog-interconnects-pair-balanced-xlr-connectors-new\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR. \u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use a modern Amplitrex AT-1000 Professional Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. \u003cbr\u003e\u003cbr\u003eWe document the results of each tube and replace any weak or suspect tubes before proceeding. \u003cbr\u003e\u003cbr\u003eWhen we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable.\u003cbr\u003e\u003cbr\u003eIf everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged.\u003cbr\u003e\u003cbr\u003eOnce we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation. \u003cbr\u003e\u003cbr\u003eWe start by feeding the input of the amplifier with a low level 1 KHz test signal, slowly increasing its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention. \u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics. \u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. \u003cbr\u003e\u003cbr\u003eFor tube amps we like to run this test at least twice.\u003cbr\u003e\u003cbr\u003eThis allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e","brand":"LAMM","offers":[{"title":"Default Title","offer_id":47229713219838,"sku":"106741","price":12390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/lamm-m1-2-reference-monoblock-amplifiers-class-a-tube-and-mosfet-hybrid-w-free-shipping-amplifier-422.jpg?v=1774461011"},{"product_id":"cello-duet-350-amplifier-serviced","title":"Cello Duet 350 Amplifier - 350W Class A\/B - Serviced","description":"\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003cbr\u003eThis is an absolutely legendary amplifier from the golden days of HiFi. \u003c\/p\u003e\n\u003cp\u003eRated at 350W this is true powerhouse capable of driving just about anything with great finesse and detail which is often missing from big amplifiers.\u003c\/p\u003e\n\u003cp\u003eYou won't find any digital trickery in this amp, it features true class A\/B amplification and no expense was spared.\u003c\/p\u003e\n\u003cp\u003eDesigned by renowned engineer Mark Levinson, the Cello line of products exemplify the absolute top of the class. Coveted by audiophiles and collectors, Cello products don't trade very often.\u003cbr\u003e\u003cbr\u003eThis Duet 350 was thoroughly tested and serviced in house and is now working perfectly. This is a must for Amplfiiers this age with high-power output capability.\u003c\/p\u003e\n\u003cp\u003eWe have seviced several a few of these in the past and know exactly how to bring them back to top condition. \u003cbr\u003e\u003cbr\u003eIf you'd like to add Cello Fischer to XLR adapters to the listing shown in the last photo, please select the option in this listing add them to your cart. Otherwise they will not be included with your purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e\u003cbr\u003eThis amplifier is exempt from any Free Shipping promotions.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cello Duet 350 will be carefully wrapped and packed on a pallet to ship via truck freight with full insurance within the lower 48 US States for a flat $400. This amount will automatically be added during your checkout.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWe can safely pack this amplifier to ship worldwide, just contact us for a quote. Local pickup welcome and we can also arrange a local courier depending on distance. Please contact us for details. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eThe Duet 350 Amplifier\u003c\/strong\u003e\u003cbr\u003eReal music fills a room.\u003c\/p\u003e\n\u003cp\u003eEven the softest instruments are more present in life than most music systems can reproduce from recordings. Part of the problem has been the limitations in power amplifiers.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Duet 350 Power Amplifier is a stereo power amplifier that has achieved affordable excellence in sonic quality, power capability and reliability.\u003cbr\u003e\u003cbr\u003eIn its normal stereo mode it has more than enough power to drive most speakers to their limits with the kind of open, clear, effortless sound which are the hallmark of Cello. When used in a bridged configuration, the Duet 350 becomes a mono block power station capable of high speed and powerful dynamics under any condition.\u003cbr\u003e\u003cbr\u003eThe Duet 350 Amplifier has been specifically designed by Cello engineers to be compatible with a wide variety of available equipment.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSkyFi Cosmetic Notes:\u003c\/b\u003e\u003cbr\u003eThis amplifier has marks and scratches on all surfaces including the faceplate and handles. The edges of the faceplate are chipped and marred in some places. Overall condition is presentable.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSkyFi Technical Notes:\u003c\/b\u003e\u003cbr\u003eThis amplifier was serviced in house here at SkyFi.\u003c\/p\u003e\n\u003cp\u003eWe replaced select components in the right channel to restore proper functionality. Known to fail Sprague capacitors in both channels were also replaced. After the service was completed we tested both channels. They clip at approximately 400W into 8 ohms both channels driven. \u003cbr\u003e\u003cbr\u003ePlease contact us for Fischer interconnect options (Additional Charge).\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSecond Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eFisher inputs, IEC Power\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eSmooth, uncolored, undistorted natural and clean\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e6\/10 = Fair. Three to four minor scratches, or one major scratch. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eJust the unit and power cord.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eWill be packed using our highly developed in-house process and custom packing materials.\u003ciframe title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE?\u0026amp;autoplay=1\u0026amp;mute=1\" height=\"720\" width=\"1280\"\u003e\u003c\/iframe\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003eClass of operation: \u003cbr\u003eClass AB2\u003cbr\u003e\u003cbr\u003ePower Output (single amp):\u003cbr\u003e@8 Ohms Rated: 350 Watts \u003cbr\u003e@4 Ohms Rated: 600 Watts \u003cbr\u003e\u003cbr\u003ePower Output (bridged amps):\u003cbr\u003e@8 Ohms Rated: 1,200 Watts \u003cbr\u003e\u003cbr\u003eIMD (SMPTE):\u003cbr\u003e0.3% (60 Hz \/ 8 Ohms \/ 52.92 V Output)\u003cbr\u003e\u003cbr\u003eIMD (CCIF):\u003cbr\u003e\u0026lt;0.2%\u003cbr\u003e\u003cbr\u003eTHD (20 - 20000Hz):\u003cbr\u003e\u0026lt;0.3% (8 Ohms \/ 52.92 Volt Output)\u003cbr\u003e\u0026lt;0.6% (4 Ohms \/ 49 Volt Output)\u003cbr\u003e\u003cbr\u003eFrequency Response:\u003cbr\u003e+0\/-0.8 dB @ 10 - 20000 Hz\u003cbr\u003e\u003cbr\u003eDynamic Headroom:\u003cbr\u003e1.8 dB\u003cbr\u003e\u003cbr\u003eChannel Separation:\u003cbr\u003e90 dB\u003cbr\u003e\u003cbr\u003eSignal to Noise:\u003cbr\u003e\u0026lt; -100 dB (10 - 22000 Hz \/ Rated Output)\u003cbr\u003e\u003cbr\u003eInput Sensitivity:\u003cbr\u003e1.491 V (8 Ohms \/ 350 Watts \/ 52.92 Volt Output)\u003cbr\u003e\u003cbr\u003eInput Impedance:\u003cbr\u003e1 mOhm (Non-Inverting)\u003cbr\u003e5000 Ohm (Inverting)\u003cbr\u003e1 mOhm (Unbalanced)\u003cbr\u003e\u003cbr\u003eGain:\u003cbr\u003e31 dB (Unbalanced)\u003cbr\u003e37 dB (Balanced)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003e19\" x 12.62\" x 23.25\"\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e90 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/Cello-Duet-350-Owners-Manual.pdf?v=1679586184\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1 KHz test signal at the amplifier's input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. \u003cbr\u003e\u003cbr\u003eAt this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier's frequency response characteristics. \u003cbr\u003e\u003cbr\u003eThis battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003cbr\u003e\u003c\/p\u003e","brand":"Cello","offers":[{"title":"With Adapter ($700)","offer_id":47457825456382,"sku":"105387","price":8690.0,"currency_code":"USD","in_stock":true},{"title":"No Adapter ($0)","offer_id":47457825489150,"sku":"105388","price":7999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/cello-duet-350-amplifier-350w-class-a-b-serviced-559.jpg?v=1761688869"},{"product_id":"technics-se-r1-amplifier-holy-grail-technics","title":"Technics SE-R1 Amplifier - Holy Grail Technics Piece - Near NOS - w\/Free Shipping","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eThe SE-R1 is an incredibly special amplifier from Technics.\u003c\/p\u003e\n\u003cp\u003eThis was the top of the range amplifier from the brand and MSRP on this beast was $16,999 when new!\u003cbr\u003e\u003cbr\u003eThe SE-R1 represented the best that Technics (or possibly anyone) could offer in digital amplification technology.\u003c\/p\u003e\n\u003cp\u003eStandout features include circuitry to reduce jitter and noise, along with load adaptive phase calibration to improve overall speaker matching. And this is just scratching the surface on the technology. \u003c\/p\u003e\n\u003cp\u003eThis amplifier must have the absolute largest meters we've ever seen on any Japanese piece.  They're truly spectacular in person, and will make this the centerpiece of your system in any room.\u003cbr\u003e\u003cbr\u003eIn our bench testing this surpassed its 150W per channel rating into an 8 ohm load. We played a variety of music and this was one the best sounding amplifiers we've heard with a class D output stage - if not the best.\u003c\/p\u003e\n\u003cp\u003eWe purchased this amplifier from another authorized Technics dealer that had it since new, and it has never been sold, hence its condition.  We believe it was used very sparingly if at all. \u003c\/p\u003e\n\u003cp\u003eThis is the complete kit as it came from the factory. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e:\u003cbr\u003eThese ship for free anywhere in the contiguous 48 states. Worldwide shipping also available for an additional $400 fee.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSkyFi Cosmetic Notes:\u003c\/b\u003e\u003cbr\u003eThis amplifier has a few tiny cosmetic blemishes on the top and sides. Overall the unit looks almost new.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrom Technics:\u003c\/strong\u003e\u003cbr\u003eJENO Engine (Jitter Elimination and Noise-shaping Optimization)\u003cbr\u003eJitter is a major cause of distortion in digital systems, and is caused by mis-timing in the master clocks used in digital-to-analog conversion. To eliminate the degradation of sound caused by jitter, Technics has developed an original jitter reduction circuit, comprising a clock generator in the noise-shaping system to reduce jitter in the low-frequency range and a high-precision sample rate converter for suppressing jitter in the high-frequency range. Thus it reduces jitter in an ideal way over the entire frequency range.\u003cbr\u003e\u003cbr\u003eThis works with a newly-developed and original high-precision PWM (Pulse Width Modulation) conversion circuit, optimizing the noise-shaping speed, the degree and requantization number, and the PWM gradation, in order to convert high-resolution signals to PWM without causing any damage to the dynamic range. These new technologies enable new Technics digital amplifier designs to reproduce the natural and delicate nuances of music.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eGaN-FET Driver (High-Speed and Low-Impedance Power Devices)\u003c\/strong\u003e\u003cbr\u003eIn the speaker-driving section of the amplifier, Technics has employed a high-speed GaN (gallium nitride) FET driver device with super-low resistance. This enables the construction of a high-power amp using a single push-pull configuration, allowing the length of the large current carrying signal path to be shortened, and resulting in outstanding linearity regardless of the sound level.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eLAPC (Load Adaptive Phase Calibration)\u003c\/strong\u003e\u003cbr\u003eThe impedance of a speaker is not constant: it varies according to frequency, thus altering the loading on an amplifier and therefore potentially the sound. Technics is able to measure an amplifier's frequency amplitude-phase characteristics with speakers connected, and has developed a speaker impedance adaptive optimization algorithm using digital signal processing to achieve ideal impulse response. Correction processing based on a new algorithm achieves a flat frequency response for both amplitude and phase, not possible in conventional amps, and delivering a sound with rich spatial expression.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTechnics Digital Link (Original Digital Signal Transmission)\u003c\/strong\u003e\u003cbr\u003eSome systems use a digital link between source component and pre-amplifier, keeping the digital signal pure as long as possible: Technics Digital Link goes further. It has eliminated the volume control function from the pre-amplifier, and instead transmits the volume control information, together with the audio signal, directly to the power amplifier in digital form. The power amp's jitter reduction circuit reduces any effect of jitter in signal transmission, then performs the volume control immediately before the PWM converter. This new sound transmission interface, Technics Digital Link, supports audio signals and also eradicates inter-channel effects by transmitting the left and right channel signals separately. \u003cbr\u003e\u003cbr\u003eTechnics Digital Link has achieved an ideal amplifier configuration, minimizing any degradation between the pre-amplifier and the power amp, and resulting in superb stereo separation and reproduction of even the most subtle signals. The result is a more detailed and dynamic sound.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBattery Driven Clock Generator\u003c\/strong\u003e\u003cbr\u003eThe best power supply for delicate circuitry such as the clock generator in the new amplifiers is one entirely isolated from any noise or fluctuations in the mains supply. Technics has extensive experience in circuits using battery isolation, having used them to create ultra-low-noise pre-amplifier stages in past analog amplifiers.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh-speed Silent Linear Power Supply\u003c\/strong\u003e\u003cbr\u003eThe accurate reproduction of everything from dynamic and powerful sounds to the low-level signals expressing delicate nuances requires a special power supply in an amplifier. It needs to be both powerful and low-noise, as well as capable of responding instantly to a continuously changing audio signal without any voltage fluctuation. The power supply circuit of an ordinary amp consists of a large-capacity power transformer and a rectifier circuit: after examining ways to achieve ideal voltage and current waveforms, Technics decided to use a choke-input\u003cbr\u003erectification, plus a discrete stabilized power supply circuit. These technologies incorporated in the power supply circuit enable the amp to drive the speakers powerfully under any conditions.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSingle Path Minimization\u003c\/strong\u003e\u003cbr\u003eThe length of the signal path is kept as short as possible to improve the signal to noise ratio, reduce potential sources of distortion and interference, and give the most direct communication of the music.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDual Mono Construction\u003c\/strong\u003e\u003cbr\u003eThe main amplifier layout separates the left and right channel signal paths completely, all the way back to the secondary winding on the power transformer, to prevent mutual interference and also achieve an ideal weight balance. This design gives optimal stereo separation, and also allows the two channels to be laid out in ‘mirror image’,\u003cbr\u003egiving equal signal-path lengths for each channel\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh Rigidity Metal Double Chassis\u003c\/strong\u003e\u003cbr\u003eTo support heavy parts and components and lower the center of gravity for improved stability, the inner chassis of the SE-R1 is made of 3-mm-thick plate, but the amplifier uses a huge, and very heavy, mains transformer: to support this better and reduce vibration, columns of die-cast aluminum are arranged at appropriate intervals between the bottom inner chassis and outer chassis. The external casing is made of a 7-mm-thick aluminum\u003cbr\u003eplate to resist the effect of electromagnetic noise.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh-Quality Parts\u003c\/strong\u003e\u003cbr\u003eLarge, newly designed speaker terminals enable the connection of thick cables, and even the screws are high precision to ensure they remain tight, giving a firm and reliable cable connection. The insulators are cast iron for high rigidity and an excellent damping effect: this reduces both susceptibility to vibration, and the transmission of any vibration to external devices.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrand Background:\u003c\/b\u003e\u003cbr\u003eAt Technics we understand that the listening experience is not purely about technology but the magical and emotional relationship between people and music. We want people to experience music as it was originally intended and enable them to feel the emotional impact that enthuses and delights them. With a combination of our love of music and the vast high-end audio experience of the Technics team, we stand committed to building a brand that provides the ultimate emotive musical experience by music lovers, for music lovers.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSingle Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA and XLR inputs, Technics Digital Ethernet Inputs\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eNeutral sound with little to no coloration\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e9\/10 = Excellent. Perfect physical condition, gently used. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eUnit, Box, Manual\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003cbr\u003e\u003cb\u003eReviews:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.stereophile.com\/content\/technics-se-r1-digital-amplifier\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003eAccurate Digital Technology\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eJENO Engine(Jitter Elimination and Noise-shaping Optimization)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eGaN-FET Driver\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eLAPC (Load Adaptive Phase Calibration)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTechnics Digital Link\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eHigh-speed Silent Linear Power Supply\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBattery Driven Clock Generator\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDual Mono Construction\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eHigh Rigidity Metal Double Chassis\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTechnics Definitive Design\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAluminium plain miter joint\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWhite LED illuminated large level meter\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSymmetric structure\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput Power\u003cbr\u003e150 W + 150 W (1 kHz, T.H.D. 0.5%, 8 Ω, 20 kHz LPF)\u003cbr\u003e300 W + 300 W (1 kHz, T.H.D. 0.5%, 4 Ω, 20 kHz LPF)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eInput Sensitivity \/ Input Impedance\u003cbr\u003eUNBALANCED 1.2 V \/ 47 kΩ, BALANCED 1.2 V \/ 47 kΩ\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFrequency Response\u003cbr\u003e1 Hz - 90 kHz (-3 dB, 8 Ω)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTHD+N\u003cbr\u003e0.05% (1 kHz, 75 W, 8 Ω, 20 kHz LPF)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eLoad Impedance\u003cbr\u003eA or B, Bi-wiring: 4-16 Ω, A + B: 8-16 Ω\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAnalog Input Terminal\u003cbr\u003eUNBALANCED x 1, BALANCED x 1\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDigital Input Terminal\u003cbr\u003eTechnics Digital Link x 1\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePower Supply\u003cbr\u003eAC120 V, 60 Hz\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePower consumption\u003cbr\u003e250 W\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDimensions (W x H x D)\u003cbr\u003e480 x 241 x 567 mm\u003cbr\u003e18-7\/8 x 9-15\/32 x 22-11\/32 inch\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWeight\u003cbr\u003eApprox. 54 kg\u003cbr\u003eApprox.119 lbs\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAccessories\u003cbr\u003eAC cords, Owner's manual\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003eW x H x D: 18.90” × 9.49” × 22.32” (480 x 241 x 567mm)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e119 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003cbr\u003e2014\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/help.na.panasonic.com\/wp-content\/uploads\/2023\/02\/SER1_SQT0505_ENG_FRE.pdf\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-silver-streak-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1 KHz test signal at the amplifier's input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. \u003cbr\u003e\u003cbr\u003eAt this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier's frequency response characteristics. \u003cbr\u003e\u003cbr\u003eThis battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003cbr\u003e\u003c\/p\u003e","brand":"Technics","offers":[{"title":"Default Title","offer_id":47457794949374,"sku":"107068","price":15390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/technics-se-r1-amplifier-holy-grail-piece-near-nos-w-free-shipping-116.jpg?v=1774460886"},{"product_id":"leben-cs-1000p-stereo-tube-power-amplifier-new-pre-order","title":"Leben CS-1000P Stereo Tube Power Amplifier - New - Pre Order","description":"\u003ch5\u003eSKYFI IS NOW A LEBEN DEALER\u003cmeta charset=\"UTF-8\"\u003e\n\u003c\/h5\u003e\n\u003cp\u003eThe CS-1000P is a high power tube amplifier from Leben. It's rated at 100W per channel in Pentode mode, and 70W per channel in Triode mode.\u003c\/p\u003e\n\u003cp\u003eKey features include a meter at the top to assist with tube bias, wood side panels, and a beautiful and well-made chassis. \u003c\/p\u003e\n\u003cp\u003eItems from Leben have a considerable lead time since they're handmade in small numbers. This lead time can be up to 6 months.  Please call us to discuss timing and reserve your spot in the queue.  \u003c\/p\u003e\n\u003cp\u003eSupport your local Leben Dealer.  \u003c\/p\u003e\n\u003cdiv class=\"feature-list\"\u003e\n\u003cp class=\"biggest-feature\"\u003e\u003cstrong\u003eHigh power output tube KT120 (Super KT88)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"feature-detail\"\u003e100W\/ch (1 KHz) at Pentode circuit (70W\/ch at Triode).\u003c\/p\u003e\n\u003cp class=\"feature\"\u003e\u003cstrong\u003ePentode\/Triode selector switch Bias adjustment with a Cathode-direct meter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"feature-detail\"\u003eSeveral types of output tubes are applicable by adjusting the cathodal electric current.\u003c\/p\u003e\n\u003cp class=\"feature\"\u003e\u003cstrong\u003eNewly developed Orient-core output transformer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"feature-detail\"\u003eA minimum loss and a superior high-frequency response.\u003c\/p\u003e\n\u003cp class=\"feature\"\u003e\u003cstrong\u003e\u003cimg\u003eFlat and wide Frequency Response\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"feature-detail\"\u003eA wide frequency response from 10 Hz to 150 KHz (-0 dB) caters for digital audio formats such as SACD\/HDCD.\u003c\/p\u003e\n\u003cp class=\"feature\"\u003e\u003cstrong\u003eHigh rigidity solid aluminum insulators\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"feature\"\u003e\u003cstrong\u003eOTHER FEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"recommended-list\"\u003e\n\u003cli\u003eSuper-high sensitivity bias meter made by a long-established manufacturer.\u003c\/li\u003e\n\u003cli\u003eHigh-grade Metal glaze resistorals of below 1% error margin.\u003c\/li\u003e\n\u003cli\u003eHigh-grade 41-steps Detent Volume of ALPS.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"spec-title\"\u003e\u003cstrong\u003eCS-1000P SPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"spec\" summary=\"Leben CS-1000P Spec and Details\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTUBES COMPLIMENT\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003eKT120 x 4\u003cbr\u003e6922\/6DJ8 (ECC88) x 2\u003cbr\u003e6CG7\/6FQ7 x 2\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOUTPUT POWER\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003e100W x 2 at 1 KHz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFREQUENCY RESPONSE\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003e10 Hz - 150 KHz. (-3 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eINPUT SENSITIVITY\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003e0.4V at 50W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eINPUT IMPEDANCE\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003e100K Ohms.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOUTPUT IMPEDANCE\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003e4\/6\/8\/16 Ohms (Selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePOWER CONSUMPTION\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWEIGHT\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003e23.5 Kgs. (51.8 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDIMENSIONS\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003e455 (W) X 200 (H) X 335 (D) mm (\u003cspan style=\"font-size: 0.875rem;\"\u003e17.91” (W) × 7.87” (H) × 13.19” (D)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eATTACHMENT\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003eDetachable AC Power Cable x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Leben","offers":[{"title":"Default Title","offer_id":47468962349310,"sku":null,"price":13995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/leben-cs-1000p-stereo-tube-power-amplifier-new-pre-order-947.jpg?v=1763760545"},{"product_id":"leben-rs-28cx-premium-pre-amplifier-new-pre-order","title":"Leben RS-28CX Premium Pre Amplifier - New - Pre Order","description":"\u003ch5\u003eSKYFI IS NOW A LEBEN DEALER\u003cmeta charset=\"UTF-8\"\u003e\n\u003c\/h5\u003e\n\u003cp\u003eThe Leben RS-28CX is a fully featured tube preamplifier. Features include a tape loop, 3 line level inputs, and a phono stage (which some of their integrated amplifiers lack).\u003c\/p\u003e\n\u003cp\u003eThis is also a two piece design which an external power supply, designs like this often have a low noise floor and are best sounding pieces we have. \u003c\/p\u003e\n\u003cp\u003eItems from Leben have a considerable lead time since they are handmade in small numbers.  This lead time can be up to 6 months.  Please call us to discuss timing and reserve your spot in the queue.  \u003c\/p\u003e\n\u003cp\u003eSupport your local Leben Dealer.  \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore From Leben:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"feature-list\"\u003e\n\u003cp class=\"feature-detail\"\u003eThere are two major types of RIAA phono equalization systems, one is NFB(Negative Feedback) type and the other is CR type.\u003c\/p\u003e\nA representative preamplifier equipped with NFB type equalizer is the MARANTZ Model: 7. This is a 3-step amplification NF equalizer based on 12AX7, which applies NFB from the 3rd stage cathode to the 1st stage cathode.(so-called \"K-K type\").\u003cbr\u003eThe advantage of the NFB type is that it does not require a high gain level and is not very sensitive to tube quality. However, the impedance of NFB at high frequency range becomes very low and results in a negative effect - the sound becomes hard and dry.\u003cbr\u003eThe NFB type is usually used as it is an easier way to attain a good signal-to-noise ratio.\u003cbr\u003eAs for the \u003cstrong class=\"importance\"\u003eCR type\u003c\/strong\u003e, a masterpiece preamplifier equipped with the CR type equalizer is the vintage Harman-Kardon Model: \"Citation IV\".\u003c\/div\u003e\n\u003cdiv class=\"feature-list\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature-list\"\u003e\n\u003cmeta charset=\"UTF-8\"\u003e \u003cspan\u003eCR type equalization requires a high gain level and is much more sensitive to tube quality.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eSince tube quality will be directly amplified, the finest possible quality tubes are needed for this type of equalizer. Moreover, proper implementation is more difficult.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eHowever, \u003c\/span\u003e\u003cstrong class=\"importance\"\u003ethe CR type is much more superior sonically to the NFB type\u003c\/strong\u003e\u003cspan\u003e, being very stable in the high frequency range and is able to reproduce a very high quality sound especially when high quality tubes are used.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-list\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-list\"\u003e\n\u003cp class=\"biggest-feature\"\u003e\u003cstrong\u003eWINNING HISTORY\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable summary=\"WINNING HISTORY\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eCOUNTRY\u003c\/th\u003e\n\u003cth\u003ePUBLISHMENTS\u003c\/th\u003e\n\u003cth\u003eNAME OF AWARD\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrance\u003c\/td\u003e\n\u003ctd\u003eRevue du Son\u003c\/td\u003e\n\u003ctd\u003e5-STARS (July\/August, 2006)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cspan\u003e\u003cbr class=\"clear\"\u003e\u003c\/span\u003e\n\u003cp class=\"feature-detail\"\u003e\u003cstrong class=\"importance\"\u003eRS-28CX\u003c\/strong\u003e is equipped with the \u003cstrong class=\"importance\"\u003eCR type equalizer\u003c\/strong\u003e based on GE(General Electric\/USA) \u003cstrong class=\"importance\"\u003e12AT7\u003c\/strong\u003e authorized by \u003cstrong class=\"importance\"\u003eJ.A.N.(Joint Army \u0026amp; Navy) standard of US Army\u003c\/strong\u003e, and can reproduce a very high quality and clear sound \u003cstrong class=\"importance\"\u003ewithout adding any NFB\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cspan\u003e\u003cbr class=\"clear\"\u003e\u003c\/span\u003e\n\u003cp class=\"feature-detail\"\u003eTo avoid compromising on sound quality ,one of the solutions we adapted to totally protect the sensitive CR type equalizer from negative effects was to develop a separate power supply unit.\u003cbr\u003eLikewise, some of the finest available high-end audio components were selected for the RS28C to keep the deflection of the RIAA curve below +\/-0.3%.\u003c\/p\u003e\n\u003cspan\u003e\u003cbr class=\"clear\"\u003e\u003c\/span\u003e\n\u003cp class=\"feature-detail\"\u003eOf course, the phono equalizer is only one of the strengths of the RS28C. Another notable feature is a very strong output voltage created by the Dual-Triode Tube 6CG7 of General Electric(USA) used for the line stage. Leben further selected the best quality tubes out of these and constructed a powerful SRPP type amplification which can supply power amplifiers with a maximum 80V of clean output signal.\u003cbr\u003eIn considering the fact that output voltage of a standard preamplifier is more or less 40V, the RS28C can output about two times as much voltage, which will drive power amplifiers with very low input sensitivity.\u003c\/p\u003e\n\u003cspan\u003e\u003cbr class=\"clear\"\u003e\u003c\/span\u003e\n\u003cp class=\"feature-detail\"\u003eLikewise, for using the RS28C with a high sensitivity power amplifier, a 5-step attenuator is present in order to eliminate residual noise from speakers.\u003c\/p\u003e\n\u003cspan\u003e\u003cbr class=\"clear\"\u003e\u003c\/span\u003e\n\u003cp class=\"feature-detail\"\u003e\u003cstrong class=\"importance\"\u003eLeben also included two outputs (one fixed and one variable)\u003c\/strong\u003e in order to cope with requirements for adding a \u003cstrong class=\"importance\"\u003eSub-Woofer\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"feature-detail\"\u003e\u003cstrong class=\"recommended\"\u003e\"GENERAL ELECTRIC\"(USA) J.A.N. STANDARD TUBE 12AT7\u003c\/strong\u003e\u003cbr\u003eThe Phono equalizer Circuit of CS-30EQ is of CR type RIAA equalization design with zero feedback in order to bring out the superior characteristic of the 12AT7 which is authorized by J.A.N.(Joint Army \u0026amp; Navy) standard.\u003c\/p\u003e\n\u003cp class=\"feature-detail\"\u003e\u003cstrong class=\"recommended\"\u003e\"GENERAL ELECTRIC\"(USA) HIGH OUTPUT TUBE 6CG7\u003c\/strong\u003e\u003cbr\u003eThe line stage circuit uses the Twin-Triode Tube 6CG7 of General Electric(USA) SRPP system, and can supply a signal of up to 80V to the Power Amplifier.\u003cbr\u003eTherefore, RS-28CX can drive all kinds of Power Amplifiers of Low-Sensitivity or Low-Driving capability.\u003c\/p\u003e\n\u003cp class=\"feature-detail\"\u003e\u003cstrong class=\"recommended\"\u003eHIGH-GRADE PARTS\u003c\/strong\u003e\u003cbr\u003eThe highest quality available components(Condensors, Resisters, etc) are used for all essential parts which affect the sound quality. a high grade Detachable AC power cord is included.\u003c\/p\u003e\n\u003cp class=\"feature-detail\"\u003e\u003cstrong class=\"recommended\"\u003eINDEPENDENT POWER SUPPLY UNIT.\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eIn order to shut-off any influences from the power transformer to the main circuit,the Power Supply Unit is housed in a seperate chassis.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"spec-title\"\u003e\u003cstrong\u003eRS-28CX SPECIFICATIONS\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"spec\" summary=\"Leben RS-28CX Spec and Details\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTUBE COMPLIMENT\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003e2 x 6CG7 (G.E.)\u003cbr\u003e2 x 12AT7 (G.E.)\u003cbr\u003e1 x 5Y3WGT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth rowspan=\"3\"\u003ePHONO AMPLIFIER\u003c\/th\u003e\n\u003ctd\u003eGain\u003c\/td\u003e\n\u003ctd\u003e20.2dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRIAA Curve\u003c\/td\u003e\n\u003ctd\u003eLess than +-0.3dB.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Input\u003c\/td\u003e\n\u003ctd\u003e400mV (2KHz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth rowspan=\"4\"\u003eLINE AMPLIFIER\u003c\/th\u003e\n\u003ctd\u003eGain\u003c\/td\u003e\n\u003ctd\u003e25.2dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Output\u003c\/td\u003e\n\u003ctd\u003e80V (Variable) \u0026amp; 80V(fixed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e580 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRemaining Noise\u003c\/td\u003e\n\u003ctd\u003e0.03mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth rowspan=\"2\"\u003eWEIGHT\u003c\/th\u003e\n\u003ctd\u003eMain Body\u003c\/td\u003e\n\u003ctd\u003e7.0 Kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e6.5 Kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth rowspan=\"2\"\u003eDIMENSIONS\u003c\/th\u003e\n\u003ctd\u003eMain Body\u003c\/td\u003e\n\u003ctd\u003e352(W) x 240(D) x 175(H) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e233(w) x 240(d) x 175(H) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eATTACHMENT\u003c\/th\u003e\n\u003ctd colspan=\"2\"\u003eAC Power Cable\u003cbr\u003ePower Supply Connecting Cable.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e","brand":"Leben","offers":[{"title":"Default Title","offer_id":47468989415678,"sku":null,"price":8495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/leben-rs-28cx-premium-pre-amplifier-new-order-562.jpg?v=1762276387"},{"product_id":"mcintosh-mc830-1-channel-power-amplifier-new","title":"McIntosh MC830 1-Channel Power Amplifier - NEW","description":"\u003cp\u003e\u003ca title=\"Click here to schedule an appointment to visit our store (SkyFi Audio)\" href=\"mailto:info@skyfiaudio.com?subject=Appointment%20Request%20-%20McIntosh\u0026amp;body=Hello%20SkyFi%20Team%2C%0D%0A%0D%0AI%20would%20like%20to%20schedule%20an%20appointment%20on%3A%0D%0A%0D%0AMy%20name%20is%3A%0D%0A%0D%0AMy%20phone%20number%20is%3A%0D%0A%0D%0ANote%3A%0D%0A%0D%0AWe're%20open%20Monday%20through%20Friday%209am%20to%206pm%20with%20additional%20availability%20on%20some%20weekends.%0D%0A%0D%0AThank%20you%20and%20we%20will%20respond%20promptly.%0D%0A%0D%0ASkyFi%20Audio%0D%0A479%20South%20Broad%20Street%0D%0AGlen%20Rock%2C%20NJ%2007452%0D%0A%0D%0A(201)%20879-0000%0D%0Ainfo%40skyfiaudio.com\" target=\"_blank\"\u003eClick here\u003c\/a\u003e to schedule an appointment to visit our store.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease note this item must be purchased in store and we will not ship under any circumstances. \u003ca title=\"Please note this item must be purchased in store and we will not ship under any circumstances. Click here for more information about this policy.\" href=\"https:\/\/skyfiaudio.com\/pages\/mcintosh-dealer-and-sales-policies\" target=\"_blank\"\u003eClick here\u003c\/a\u003e for more information about this policy.\u003c\/p\u003e\n\u003cp\u003ePlease support your local McIntosh Dealer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandout Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Solid State\u003c\/li\u003e\n\u003cli\u003e300 Watts x 1-Channel into 8 Ohms\u003c\/li\u003e\n\u003cli\u003e480 Watts x 1-Channel into 4 Ohms\u003c\/li\u003e\n\u003cli\u003ePower Guard®, Sentry Monitor™, Monogrammed Heatsinks™, Solid Cinch™ speaker binding posts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eThe MC830 is a 1-Channel Solid State Amplifier that features an open chassis industrial design similar to our popular MC275 Vacuum Tube Amplifier, and MA252 and MA352 Integrated Amplifiers. A pair of MC830s, when combined with a preamplifier (such as the matching C8 Vacuum Tube Preamplifier), source components like a turntable, CD player (see the matching MCD85 SACD\/CD Player) or streaming music player, and a pair of speakers, can deliver a true-to-life home audio experience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eWith a similar footprint to our MA252 Integrated Amplifier, the MC830 is a direct coupled output design that is rated at 300 Watts at 8 Ohms or 480 Watts at 4 Ohms. A fast-responding Dual Scale Watt meter gives an accurate readout of power output for both speaker impedances.\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cblockquote\u003e\n\u003cp\u003e“Night after night, the MC830 amps created an immersive emotional listening experience with whatever music I played. Mahler, Marillion, Motörhead, Chris Stapleton, the MC5, Miles Davis, AC\/DC, Rossini, Jeff Beck, or John Lee Hooker, regardless of the type of music that I fed them, the monoblocks consistently created a breathtaking sound that was accurate, precise, and soul-moving.” - Positive Feedback\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eOur Monogrammed Heatsinks\u003csup\u003e™\u003c\/sup\u003e add visual appeal and will keep the MC830 running cool for optimum performance. Both a balanced and unbalanced input are included for connecting it to the rest of your home music system.\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eTo protect your speakers and overall system, the MC830 includes two of our cornerstone home audio technologies. Our patented Power Guard\u003csup\u003e®\u003c\/sup\u003e technology monitors the amplifier's output signal to protect your speakers against being over driven; if necessary, it makes real time micro adjustments to the input signal to prevent clipping that could damage your speakers. Another level of protection is Sentry Monitor\u003csup\u003e™\u003c\/sup\u003e, our fuse-less short-circuit protection circuit that will disengage the MC830's output stage before current exceeds safe operating levels, and then will reset automatically when operating conditions return to normal.\u003c\/p\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eOur patented Solid Cinch\u003csup\u003e™\u003c\/sup\u003e speaker binding posts easily secure your speaker cables to prevent them from coming loose and possibly causing a short. The binding posts are gold-plated to prevent corrosion and ensure a quality audio signal is sent to your speakers. Power Control ports allow for easy system power up and shutdown by sending power on\/off signals to other connected McIntosh components. The user selectable Auto Off feature will turn off the MC830 after 30 minutes if no audio signal is received.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"display-table\"\u003e\n\u003cdiv class=\"table-cell w50 vertical-middle to-load-b delay-1 noPad loaded\"\u003e\n\u003cp\u003eA die cast aluminum name badge is affixed to each side of the chassis, and the front, top and rear of the chassis is polished to a mirror finish. The MC830 features a black glass front panel with silver trim, a blue Watt meter, an illuminated logo, and control knobs. Contact your local dealer to learn more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLink To Manual:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/MC830om01.pdf?rev=723e8462f5c5483b9728bd3537ac4fa8\u0026amp;amp;revision=723e8462-f5c5-483b-9728-bd3537ac4fa8\"\u003eClick Here\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eELECTRONIC SPECIFICATIONS\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFTC Power Output Rating\u003c\/dt\u003e\n\u003cdd\u003e300 W\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003ePower Output per Channel\u003c\/dt\u003e\n\u003cdd\u003e300 Watts into 8 ohms\u003cbr\u003e480 Watts into 4 ohms\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eNumber of Channels\u003c\/dt\u003e\n\u003cdd\u003e1\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eTotal Harmonic Distortion\u003c\/dt\u003e\n\u003cdd\u003e0.005%\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eS\/N below rated output\u003c\/dt\u003e\n\u003cdd\u003eBalanced: 120dB\u003cbr\u003eUnbalanced: 118dB\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eDynamic Headroom\u003c\/dt\u003e\n\u003cdd\u003e2dB\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eDamping Factor\u003c\/dt\u003e\n\u003cdd\u003e\u0026gt;100 Wideband\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eRated Power Band\u003c\/dt\u003e\n\u003cdd\u003e20Hz to 20kHz\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFrequency Response\u003c\/dt\u003e\n\u003cdd\u003e+0, -0.25dB from 20Hz to 20kHz\u003cbr\u003e+0, -3.0dB from 10Hz to 100kHz\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eCONTROL\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eRemote Power Control\u003c\/dt\u003e\n\u003cdd\u003eYes\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMulti-Channel DB25 Cable\u003c\/dt\u003e\n\u003cdd\u003eN\/A\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eCONNECTIVITY\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eSpeaker Binding Post Type\u003c\/dt\u003e\n\u003cdd\u003ePatented Solid Cinch™ Speaker Binding Posts\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eGENERAL SPECIFICATIONS\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eCircuit Configuration\u003c\/dt\u003e\n\u003cdd\u003ePush-Pull Complementary\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eCircuit Design\u003c\/dt\u003e\n\u003cdd\u003eSolid State\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMono Bridge\u003c\/dt\u003e\n\u003cdd\u003eN\/A\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMono Parallel\u003c\/dt\u003e\n\u003cdd\u003eN\/A\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eOutput Type\u003c\/dt\u003e\n\u003cdd\u003eDirect Coupled\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMeters\u003c\/dt\u003e\n\u003cdd\u003eYes\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eMeter Light Switch\u003c\/dt\u003e\n\u003cdd\u003eYes\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eBalanced Input\u003c\/dt\u003e\n\u003cdd\u003e1\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eFront Panel\u003c\/dt\u003e\n\u003cdd\u003eGlass\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eIllumination\u003c\/dt\u003e\n\u003cdd\u003eDirect LED\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eChassis Style\u003c\/dt\u003e\n\u003cdd\u003ePolished Stainless Steel\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"c-blue text-uppercase specs-title\"\u003eWEIGHTS \u0026amp; DIMENSIONS\u003c\/p\u003e\n\u003cul class=\"specs-list f-fix\"\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eUnit Dimensions (W x H x D)\u003c\/dt\u003e\n\u003cdd\u003e12-9\/32\" (31.2cm) x 9-1\/2\" (24.1cm) x 16\" (40.6cm)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eUnit Weight\u003c\/dt\u003e\n\u003cdd\u003e48 lbs (21.8 kg)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdl\u003e\n\u003cdt\u003eShipping Weight\u003c\/dt\u003e\n\u003cdd\u003e55 lbs (24.9 kg)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":47699267551486,"sku":null,"price":5500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc830-1-channel-power-amplifier-new-706.jpg?v=1768509066"},{"product_id":"mcintosh-mc501-monoblock-amplifier-pair-consecutive-serials-fiber-optic","title":"McIntosh MC501 Monoblock Amplifier Pair - Consecutive Serials, Fiber Optic","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eThe MC501s from McIntosh are notable for their mega powerful 500W output and their form factor, which is much more shallow and manageable than the current version. Unlike many amps this powerful, the MC501 can fit in most cabinets and racks.\u003cbr\u003e\u003cbr\u003eA standout design feature is the signature McIntosh 3D faceplate which in our opinion was the best looking of all the series. Thick tempered glass ensures it will not crack in shipping, plus the aluminum trim work looks amazing along with the fiber optic lighting. I suspect this construction type became too expensive for McIntosh to produce so they went back to standard flat face plates on the next version.  \u003cbr\u003e\u003cbr\u003eMC501's are perfect for someone who is looking to power their low sensitivity speakers with absolute ease. They also feature XLR inputs for balanced connections. This particular pair sounded amazing in testing.\u003c\/p\u003e\n\u003cp\u003eThe current version (MC601s) will set you back $19,000, quite a premium for extra 100w.  \u003cbr\u003e\u003cbr\u003eIncluded will be their original manual, box and plastic rear protecting terminal covers.\u003c\/p\u003e\n\u003cp\u003ePrice includes freight shipping to the lower 48 states.  \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSkyFi Cosmetic Notes:\u003c\/strong\u003e\u003cbr\u003eBoth amplifiers have some silk screen wear and slightly cloudy back panels. We opted to leave them as is to prevent any more silk screen (lettering) loss. Overall the condition is excellent.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrom McIntosh: \u003c\/strong\u003e\u003cbr\u003eSome Performance Features:\u003cbr\u003e• Full Balanced Quad-Differential Circuitry\u003cbr\u003eThe MC501 is fully balanced from inputs to outputs. It\u003cbr\u003econsists of two matched power amplifiers operating in push-pull with their outputs combined in a McIntosh Autoformer. The double balanced configuration cancels virtually all distortion.\u003cbr\u003e• Patented Autoformers\u003cbr\u003e\u003cbr\u003eThe McIntosh designed and manufactured Output\u003cbr\u003eAutoformer provides an ideal match between the amplifier output stage and speaker loads of 2, 4 and 8 ohms. The Autoformer also provides perfect DC protection for your valuable Loudspeaker.\u003cbr\u003e\u003cbr\u003e• Patented Power Guard\u003cbr\u003eThe patented McIntosh Power Guard Circuit prevents the amplifier from being over driven into clipping, with its harsh distorted sound that can also damage your valuable Loudspeaker.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrand Background:\u003c\/b\u003e\u003cbr\u003eMcIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSecond Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eXLR,RCA, Power control, IEC Power\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eSmooth, uncolored, undistorted natural and clean\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e7\/10 = Good. One or two minor scratches. Well Maintained. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eUnit, manual, and power cord.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOriginal MSRP:\u003c\/b\u003e\u003cbr\u003e$11,000.00\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003eKey Technical Specifications:\u003cbr\u003e- Power Output: 500W RMS minimum into 2, 4, or 8 Ohms\u003cbr\u003e- Total Harmonic Distortion (THD): 0.005% maximum at any level from 250mW to rated power\u003cbr\u003e- Frequency Response: +0, -0.25dB from 20Hz to 20kHz; +0, -3dB from 10Hz to 100kHz\u003cbr\u003e- Signal-to-Noise Ratio (A-Weighted): 97dB (124dB below rated output)\u003cbr\u003e- Input Impedance: 10,000 Ohms (unbalanced), 20,000 Ohms (balanced)\u003cbr\u003e- Input Sensitivity: 2.1V Unbalanced, 4.2V Balanced\u003cbr\u003e- Damping Factor: \u0026gt;100 @ 8-Ohms\u003cbr\u003e- Weight: 91.5 lbs (41.6 kg) net McIntosh\u003cbr\u003e-  +3\u003cbr\u003eFeatures:\u003cbr\u003e- Output Autoformer: Ensures full 500W power delivery regardless of speaker impedance.\u003cbr\u003e- Power Guard: Prevents clipping to protect loudspeakers.\u003cbr\u003e- Design: Black glass front panel, blue wattmeter, and stainless steel chassis.\u003cbr\u003e- Connectivity: Balanced (XLR) and unbalanced (RCA) inputs, with dedicated speaker terminals for 2, 4, and 8-ohm loads.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003e(H x W x D): 9.44” (22.86cm) x 17.5” (44.45cm) x 14.81” (37.62cm)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e91.5 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003cbr\u003e2003\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/legacy-products\/amplifiers\/MC501\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-silver-streak-analog-interconnects-pair-balanced-xlr-connectors-new\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1 KHz test signal at the amplifier's input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. \u003cbr\u003e\u003cbr\u003eAt this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier's frequency response characteristics. \u003cbr\u003e\u003cbr\u003eThis battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003cbr\u003e\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":47821593051390,"sku":"107424","price":9950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/6W4DnJRwTtL_-XHnBcKTQhZoeyJVqOBrQUYubXB65eo.jpg?v=1771953677"},{"product_id":"threshold-t50-class-a-amplifier","title":"Threshold T50 Class A Amplifier - 50 Watts","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eThe T-50 is an interesting amplifier in the Threshold range, delivering pure Class A operation with 50 watts into 8 ohms and 100 watts into 4 ohms.\u003cbr\u003e\u003cbr\u003eIt came later than the more famous Stasis series, representing a shift in design philosophy away from hybrid topologies toward a more minimalist, purist approach. Rather than combining a Class A front end with a high-power output stage, the T-50 operates fully in Class A,\u003cbr\u003e\u003cbr\u003eThe result is an excellent sound with typical class A smoothness, musicality (and heat). We really enjoyed the way this amplifier sounded at our test rig. \u003cbr\u003e\u003cbr\u003eIn addition to its sound we also like its compact chassis and overall design, It can fit on narrow shelfs that other class A amplifiers cannot.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSkyFi Cosmetic Notes:\u003c\/b\u003e\u003cbr\u003eFaceplate wear is present. All other surfaces also show wear. Overall the condition is presentable.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSkyFi Technical Notes:\u003c\/b\u003e\u003cbr\u003eThis amplifier came in with a bad single ended \/ balanced switch on the left channel. We replaced the defective switch and set the DC offset and Bias. While we had the unit on the bench we noticed that the right channel appears to have been serviced at some point in the past.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSecond Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA, XLR, IEC Power\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eSmooth, uncolored, undistorted natural and clean\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e6\/10 = Fair. Three to four minor scratches, or one major scratch. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eJust the unit and power cord.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eWill be packed using our highly developed in-house process and custom packing materials.\u003ciframe width=\"1280\" height=\"720\" src=\"https:\/\/www.youtube.com\/embed\/wuWesEecAbE?\u0026amp;autoplay=1\u0026amp;mute=1\" title=\"This Is How We Pack Sensitive Electronics at SkyFi Audio, Less Than 0.2% Shipping Damage\"\u003e\u003c\/iframe\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003e- Power Output: 50 Watts per channel into 8 ohms (Pure Class A).\u003cbr\u003e- Design: Bipolar output transistors (8 per channel).\u003cbr\u003e- Transformer: 500 VA Transformer.\u003cbr\u003e- Frequency Response: 20 Hz – 20 kHz, ±0.1 dB.\u003cbr\u003e- Voltage Gain: 26.8 dB.\u003cbr\u003e- Input Impedance: 100k ohms balanced, 50k ohms single-ended.\u003cbr\u003e- Damping Factor: \u0026gt;800, 20 Hz – 20 kHz into 8 ohms.\u003cbr\u003e- Signal to Noise Ratio: \u0026gt;80 dB (ref. 1W).\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003eHeight: 50mm (1.97 inches) Width: 400mm (15.75 inches) Length: 1140mm (44.88 inches)\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e45 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003cbr\u003e1994\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-ascent-series-hero-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/collections\/our-kimber-kable-collection\/products\/kimber-kable-summit-series-silver-streak-analog-interconnects-pair-balanced-xlr-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - BALANCED XLR Connectors\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1 KHz test signal at the amplifier's input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. \u003cbr\u003e\u003cbr\u003eAt this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier's frequency response characteristics. \u003cbr\u003e\u003cbr\u003eThis battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003cbr\u003e\u003c\/p\u003e","brand":"Threshold","offers":[{"title":"Default Title","offer_id":47931681243390,"sku":"107504","price":2490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/threshold-t50-class-a-amplifier-50-watts-700.jpg?v=1773779116"},{"product_id":"mcintosh-mc2505-vintage-solid-state-amplifier-late-serial-serviced","title":"McIntosh MC2505 Vintage Solid State Amplifier - Serviced Late Serial","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eThe McIntosh MC2505 delivers a clean 50 watts per channel, making it an excellent pairing for most medium- to high-efficiency speakers and a fantastic way to experience classic McIntosh performance.\u003cbr\u003e\u003cbr\u003eCommon for MC2505's we have had at SkyFi, it captures the warm, smooth, and musical character that has made vintage McIntosh gear so popular. During testing, we especially enjoyed the way vocals were reproduced; natural, intimate, and wonderfully lifelike.\u003cbr\u003e\u003cbr\u003eThe MC2505 also features timeless McIntosh styling, with blue illuminated meters, silver knobs, and the iconic glass faceplate that instantly identifies it. An added benefit of this model is that it offers all of these features in a relatively manageable size that is much easier to move compared to many larger vintage amplifiers.\u003cbr\u003e\u003cbr\u003eThis particular MC2505 has been serviced in house at SkyFi. As a bonus it has its original glass and stock incandescent illumination which looks particularly nice. \u003cbr\u003e\u003cbr\u003eAs always, this amplifier will be carefully packed with great attention to detail so it arrives safely at its new home.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSkyFi Cosmetic Notes:\u003c\/b\u003e\u003cbr\u003eThe glass on this MC2505 shows blemishes including bubbles on the bottom edge and some paint lifting around the headphone jack, panlocs, and left meter. We opted to leave the original glass in place because the lettering looks really nice with stock incandescent illumination. The chassis has light wear on all surfaces. Light chrome wear. One output barrier strip was replaced due to damage. Overall given its age it presents very well.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSkyFi Technical Notes:\u003c\/b\u003e\u003cbr\u003eThis unit was fully serviced in house here at SkyFi. We rebuild the speaker on\/off switch which had become intermittent, replaced a damaged output barrier strip, cleaned the controls, and performed preventative maintenance. The input and driver boards were reworked with new electrolytic capacitors and select transistors as needed. The meters have been calibrated and the unit was tested for proper output power,  clipping at around 60WPC.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrand Background:\u003c\/b\u003e\u003cbr\u003eMcIntosh Laboratory is an American manufacturer of handcrafted high-end audio equipment based in Binghamton, New York. The company was founded in 1949 by Frank McIntosh. The company designs and produces audio amplifiers, stereo tuners and other consumer electronics products.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSecond Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA, Speaker Binding Posts, Captive Power cord\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eSmooth, uncolored, undistorted natural and clean\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e7\/10 = Good. One or two minor scratches. Well Maintained. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eJust the unit and power cord.\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003ePower output: 50 watts per channel into 8Ω (stereo)\u003cbr\u003eFrequency response: 20 Hz to 20 kHz\u003cbr\u003eTotal harmonic distortion: 0.25%\u003cbr\u003eDamping factor: 10\u003cbr\u003eInput sensitivity: 0.5V\u003cbr\u003eSignal to noise ratio: 90 dB\u003cbr\u003eSpeaker load impedance: 4Ω to 16Ω\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003eSize: 5-7\/16\"H, 16\"W and 13\"D\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e38 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003cbr\u003e1967\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.mcintoshlabs.com\/-\/media\/Files\/mcintoshlabs\/DocumentMaster\/us\/Legacy\/MC2505-K-AT-OWNERS.pdf?rev=952628e03599491d9afedd01df1479bc\u0026amp;revision=952628e0-3599-491d-9afe-dd01df1479bc\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect the PCBs for discoloration from resistors or transistors that may have been running hot. On vintage units we often spot check select capacitors for value and ESR.\u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a controlled power on sequence using a Sencore safety analyzer to monitor current draw in real time. Once the amplifier is determined to be safe to operate, we connect it to full AC mains for function and power testing. We connect the speaker outputs of the amplifier to a Sencore PA81 Power Analyzer which acts as a dummy load, DC offset monitor, and oscilloscope interface. We start with a low level 1 KHz test signal at the amplifier's input and slowly increase its amplitude while monitoring the output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. \u003cbr\u003e\u003cbr\u003eAt this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance. If the device under test has both balanced and single ended inputs they are both tested at this time.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier's frequency response characteristics. \u003cbr\u003e\u003cbr\u003eThis battery of tests will usually reveal if the amplifier has any issues that need further attention.\u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench, we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics.\u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. This allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when the unit has fully come up to temperature.\u003cbr\u003e\u003c\/p\u003e","brand":"McIntosh","offers":[{"title":"Default Title","offer_id":48201632088318,"sku":"107151","price":3490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/mcintosh-mc2505-vintage-solid-state-amplifier-serviced-late-serial-318.jpg?v=1778870187"},{"product_id":"sonic-frontiers-sfs-80-vintage-tube-amplifier-serviced","title":"Sonic Frontiers SFS-80 Vintage Tube Amplifier - Serviced","description":"\u003cp\u003e\u003cb\u003eGeneral:\u003c\/b\u003e\u003cbr\u003eThe SFS-80 is an exceptional tube amplifier in every respect. Not only is it visually stunning, but its sound quality is equally impressive. Delivering 80 watts into 8 ohms, it offers more than enough power for the vast majority of speakers, making it a remarkably powerful all-tube design. The amplifier is fitted with 6550 output tubes and EH 6922 driver tubes.\u003cbr\u003e\u003cbr\u003eThe build quality and overall fit and finish are also standout features. Nearly every surface is finished in beautifully brushed aluminum, giving the amplifier an elegant appearance that catches the light unlike anything else in our shop. If you decide to pair it with the Sonic Frontiers SLF-2 preamp we also just listed, it would make a pretty awesome system.\u003cbr\u003e\u003cbr\u003eDuring testing, we found the SFS-80 to deliver an exceptionally clear, detailed, and engaging sound that made it a genuine pleasure to listen to. \u003cbr\u003eIncluded with the amplifier are its original box for safe transport and a printed copy of the owner’s manual.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSkyFi Cosmetic Notes:\u003c\/b\u003e\u003cbr\u003eOverall condition is excellent all around with very minor signs of wear on the casing.The included manual is a printed copy.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSkyFi Technical Notes:\u003c\/b\u003e\u003cbr\u003eThis amplifier came in with some minor issues. We replaced the bias sense resistors, a few other stressed parts, and re-tubed the unit. The output tubes are a strong used set of Svetlana 6550. The driver tubes are new EH 6922. After completing the service, we tested the amplifier and verified proper testing at the bench and in our listening area on long term tests.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOwnership:\u003c\/b\u003e\u003cbr\u003eSingle Owner\u003cbr\u003e\u003cbr\u003e\u003cb\u003eConnections:\u003c\/b\u003e\u003cbr\u003eRCA inputs, Speaker Binding Posts\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGeneral Sound:\u003c\/b\u003e\u003cbr\u003eSmooth, uncolored, undistorted natural and clean\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCosmetic Condition:\u003c\/b\u003e\u003cbr\u003e7\/10 = Good. One or two minor scratches. Well Maintained. See our detailed rating description \u003ca href=\"https:\/\/skyfiaudio.com\/pages\/our-rating-scale\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWorking Condition:\u003c\/b\u003e\u003cbr\u003eWorking perfectly and tested in our lab and listening room.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncluded:\u003c\/b\u003e\u003cbr\u003eUnit, Box, Manual\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePacking:\u003c\/b\u003e\u003cbr\u003eOriginal Manufacturers Packing\u003cbr\u003e\u003cbr\u003e\u003cb\u003eOriginal MSRP:\u003c\/b\u003e\u003cbr\u003e$2,750.00\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003cbr\u003ePower output: 80 watts per channel (stereo)\u003cbr\u003eFrequency response: 6Hz to 50kHz\u003cbr\u003eInput sensitivity: 0.95V\u003cbr\u003eValve complement: 4 x KT99, 4 x 6DJ8\u003cbr\u003e\u003cbr\u003e\u003cb\u003eDimensions:\u003c\/b\u003e\u003cbr\u003e18 x 14.5 x 9\u003cbr\u003e\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e\u003cbr\u003e70 lbs.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eApproximate Age:\u003c\/b\u003e\u003cbr\u003e1992\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLink to Manual:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.hifiengine.com\/manual_library\/sonic-frontiers\/sfs-80.shtml\" target=\"_blank\"\u003eClick Here\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eRecommended Cables:\u003c\/b\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-hero-interconnects-pair-rca-ultraplate-or-wbt-connectors-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-silver-streak-interconnects-pair-rca-ultraplate-or-wbt-connectors\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - RCA Interconnects\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-8tc-8-tc-ascent-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Speaker Cables\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-monocle-xl-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Summit Series Monocle XL Speaker Cables (PAIR)\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-summit-series-bifocal-xl-bi-wire-speaker-cables-pair-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Summit Series BiFocal XL Bi-Wire Speaker Cables (PAIR)\u003c\/a\u003e - Best If Applicable\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-pk14-pk-14-ascent-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Better\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/skyfiaudio.com\/products\/kimber-kable-ascent-series-pk10-pk-10-power-cord-brand-new\" rel=\"noopener\" target=\"_blank\"\u003eKimber Kable - Power Cords\u003c\/a\u003e - Best\u003cbr\u003e\u003cbr\u003e\u003cb\u003eTesting Process:\u003c\/b\u003e\u003cbr\u003eWe start with a visual inspection of all internal components to make sure that there are no signs of heat stress or damage. Capacitors are checked for telltale signs of predictive failure including bulging, shrunken wrappers, or physical leakage. We also inspect resistors and other passive components for signs of overheating. If tube arcing has occurred in the past we can usually spot discoloration on the output tube sockets. On vintage units we often spot check select capacitors for value and ESR. \u003cbr\u003e\u003cbr\u003eIf the amplifier passes visual inspection, we move on to a full test of all of the tubes. We use a modern Amplitrex AT-1000 Professional Tube Tester which is capable of testing both emission and Gm with a high degree of accuracy. \u003cbr\u003e\u003cbr\u003eWe document the results of each tube and replace any weak or suspect tubes before proceeding. \u003cbr\u003e\u003cbr\u003eWhen we power on tube amplifiers for the first time we usually use a variac and current limited AC supply and slowly raise the voltage up to nominal mains level while monitoring plate, screen, filament, and negative bias supply voltages where applicable.\u003cbr\u003e\u003cbr\u003eIf everything is in order we feed a low level test signal into the amplifier’s input and monitor its output on an oscilloscope across an 8 ohm dummy load. At this point we are just looking to verify basic function and confirm that the output transformers are not damaged.\u003cbr\u003e\u003cbr\u003eOnce we have verified that the amplifier is safe to operate, we connected it to full mains power. For fixed bias amps we set the bias to manufacturer spec. For cathode biased amps we monitor the plate to cathode voltage to determine if the output tubes are operating in a safe range. Once the output section is verified we move onto bench evaluation. \u003cbr\u003e\u003cbr\u003eWe start by feeding the input of the amplifier with a low level 1 KHz test signal, slowly increasing its amplitude while monitoring the amplifier’s output on an oscilloscope for signs of noise, clipping, distortion, or improper channel balance. We continue increasing the signal level until the amplifier reaches clipping. At this point we take an output power measurement and compare it to the spec sheet of the amplifier to verify proper performance.\u003cbr\u003e\u003cbr\u003eWe finish off the bench evaluation with a 1 KHz square wave check and a 20 Hz to 20 KHz sine sweep to assess the amplifier’s frequency response characteristics. This battery of tests will usually reveal if the amplifier has any issues that need further attention. \u003cbr\u003e\u003cbr\u003eBefore the device leaves the bench we perform a listening test with actual music using a variety of preferred test tracks. Our benches are outfitted with familiar monitor speakers which help us identify inconsistencies that will not always show up on our test gear. The main things that we are listening for are hum or noise with no signal present, proper center image, clicks, pops, or any other obvious undesirable audio characteristics. \u003cbr\u003e\u003cbr\u003eIf the unit passes all of these tests it is moved to our long term testing rig where we simulate real word operating conditions for 6-8 hours minimum. \u003cbr\u003e\u003cbr\u003eFor tube amps we like to run this test at least twice.\u003cbr\u003e\u003cbr\u003eThis allows us to monitor the unit for signs of thermal runaway or intermittent issues that only crop up when it has fully come up to temperature. We find this step to be essential, especially for vintage units.\u003c\/p\u003e","brand":"Sonic Frontiers","offers":[{"title":"Default Title","offer_id":48236463653118,"sku":"107687","price":4490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/files\/sonic-frontiers-sfs-80-vintage-tube-amplifier-serviced-330.jpg?v=1779392594"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0003\/3275\/9084\/collections\/12.jpg?v=1686598372","url":"https:\/\/skyfiaudio.com\/en-gb\/collections\/power-amplifiers.oembed","provider":"SkyFi Audio","version":"1.0","type":"link"}