Marantz Model 2500 Flagship Vintage Stereo Receiver - Full Blown Restoration

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This exact Marantz Model 2500 just received an amazing writeup from Sound & Vision, courtesy of Bob Ankosko!

Link to check out the article:

The Mighty Marantz 2500: A Commanding Presence

One of the most powerful receivers ever built by Marantz, and by far the best looking.

Highlights include:
• Built-in oscilloscope
• The best looking tuning meter in the industry
• Produced from 1977 to 1980
• 330W into 4 ohms
• Two phono inputs

This Marantz Model 2500 underwent an extensive electronic restoration which included the following:
• Full electrolytic recap of all boards except for the AM/FM Tuner.
• Original main filter capacitors tested and verified.
• All controls cleaned.
• Panel lamps were upgraded to LED.
• Select semiconductors and trimmers were replaced on the amplifier boards.
• Thermal compound refreshed on all output transistors. New Mica insulators installed
• Heat sink tunnel and fan cleaned.
• Custom fan gasket installed.
• AM and FM tuners aligned.
• DC Offset and Bias set to service manual spec.
• All knobs were ultrasonically cleaned as part of the cleaning and detailing process.

Note: This unit underwent a toroidal power transformer replacement at some point in the past before the restoration. The transformer was confirmed to be the correct authentic Marantz part.

After the restoration was completed we set this up and had it playing in our large hard-to-fill shop, after our lab and bench testing. The musicality of the sound, especially the stereo separation, was incredible. 

This vintage receiver  has its own page on the fabulous speciality HiFi website The Vintage Knob so you know it's really something special:

Marantz Model 2500
WIDE, BIG, LOUD, and HEAVY.

With a scope in it. And DC design. And a cooling system that would be carried onto the SM-1000 monster.

And a toroidal transformer with 2 separate L/R windings. And a quadruple push-pull output section. And a 5-gang varicap with PLL, Dual-Gate MOS-Fets and 6-stage IF tuner section. And a Bessel-derived high filter. And as many as "7-million tone controls possibilities".

And a ± 0,5dB 4-gang volume attenuator.
And Dolby FM compatibility.
And 27kg in toto.
And 1600$.

As the vast majority of receivers designed and built in Japan, the Marantz Model 2500 and Marantz Model 2385 were export-only.
Bar the oscilloscope, the Model 2385 is essentially identical to the Model 2500 and survived it by a couple of years.
Replaced by the Model 2600 with added Quartz-Locked tuning circuitry.

Marantz Model 2500 Flagship Vintage Stereo Receiver - Original Sales Brochure

Click below to add our recommended matching cables from Kimber Kable, all brand new as SkyFi is an official Kimber dealer.

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