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McIntosh MC275 Tube Amplifier - NEW

Sale price$6,500.00

Click here to schedule an appointment to visit our store.

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.

Please support your local McIntosh Dealer.

Standout Features:

• 75 Watts x 2 channels or 150 Watts x 1 channel
• Unity Coupled Circuit Output Transformers
• (4) KT88, (4) 12AT7 and (3) 12AX7A vacuum tubes
• One of the most iconic amplifiers ever made by any brand


    Upon 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.

    "Good audio engineering is timeless." - Stereophile 

    It 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.

    McIntosh MC275 Amplifier
    MC275 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).

    Now 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.

    The 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 speaker 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.

    Four 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 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 speaker binding posts assure the best connection to all speaker cables.McIntosh Solid Cinch speaker binding posts.

    The 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.

    Brand Background:

    Founded 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.

    McIntosh 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.


    XLR and RCA Inputs, 12 Trigger In/Out, IEC Power Cord. 


    Amplifier, Tube Cage, Manual, Power Cord and Mono Jumpers. 


    Factory Sealed McIntosh Carton


    16-1/2" (41.9cm) x 8-1/2" (21.6cm) x 12" (30.5cm)


    67 lbs (30.5 Kg)

    Link to Manual:

    Click Here

    Link to Literature:

    Click Here

    Recommended Cables:

    McIntosh Balanced Audio Cables (XLR)

    McIntosh Audio Cables (RCA)

    McIntosh Speaker Cables

    McIntosh Power Control Cables

    Kimber Kable - Ascent 14 Gauge Power Cord - Better

    Kimber Kable - Palladian 14 Gauge Power Cord - Best


    Circuit Configuration:
    Unity Coupled

    Circuit Design:
    Vacuum Tube

    Mono Bridge:

    Mono Parallel:
    Yes, 150W @ 2, 4 or 8 Ohms

    Output Type:
    Unity Coupled Output Transformer


    Light (LED) Switching
    Small signal tubes LEDs controlled by McIntosh preamp

    Balanced Input:

    Small Signal Tubes, LED

    Chassis Style:
    Polished Stainless Steel


    Click here to schedule an appointment to visit our store.

    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.

    Please support your local McIntosh Dealer.

    Mcintosh Mc275 Tube Amplifier
    McIntosh MC275 Tube Amplifier - NEW Sale price$6,500.00