McIntosh MC275 Mk. V stereo two channel vacuum tube power amplifier 75 watts


Shipping to United States: Free

This is an absolutely exquisite example of a hi-fi legend. The astounding McIntosh MC275 Vacuum Tube power amplifier. Mark V unit (produced from 2009-2012) This is a one-owner unit, owned since new and very well maintained. It was checked over and reviewed fully by Hi-Fi Sound in Minneapolis, MN. where they installed two new 12ax7 preamp tubes and one new KT88 power amp tube. I've included a copy of the service order and receipt in the photos here. The amplifier is very clean with very nice chrome, only very minor scratches due to general use. Some of the screen printed letters are rubbing off which is commonplace for these units.

We will have this unit safely double-boxed with styrofoam for safe transportation. The shipment will be fully insured.


This 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 tube amplifier.

This sixth generation MC275 has many subtle enhancements from the previous release that greatly improve 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.

"Good audio engineering is timeless." - Stereophile

McIntosh patented and gold-plated Solid Cinch™ speaker binding posts assure the best connection to all speaker cables, while high quality balanced and unbalanced input connectors enhance signal transfer from the connected preamplifier.

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 tubes in front of it will turn red to notify you of the problem. Power Control is used to remotely control tube illumination from a McIntosh preamplifier. Contact your local dealer to learn more.


Power Output per Channel: 75W @ 4, 8 or 16 Ohms
Number of Channels: 2
Total Harmonic Distortion: 0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz (≤ 0.25% harmonic distortion at 1kHz)
S/N below rated output: 105dB
Dynamic Headroom: 1.2dB
Damping Factor: >22
Rated Power Band: 20Hz to 20kHz
Frequency Response: +0, -0.5dB from 20Hz to 20,000Hz +0, -3.0dB from 10Hz to 100,000Hz


Remote Power Control: Yes, input and output
Multi-Channel DB25 Cable N/A


Circuit Configuration: Unity Coupled
Circuit Design: Vacuum Tube
Mono Bridge: No
Mono Parallel: Yes, 150W @ 2, 4 or 8 Ohms
Output Type: Unity Coupled Output Transformer
Meters: No
Balanced Input: Yes
Front Panel: N/A
Chassis Style: Polished Stainless Steel


Speaker Binding Post Type: Patented Solid Cinch™ Speaker Binding Posts


Dimensions (W x H x D)
21-1/2" (54.6cm) (including cables) x 8-1/2" (21.6cm) (including feet) x 12" (30.5cm)
Weight: 67 lbs (30.5 kg)
Shipping Weight: 75 lbs (34.1 kg)

Shipping from United States

Processing time

1-2 business days

Estimated shipping times

  • North America : 1 - 3 business days

I'll do my best to meet these shipping estimates, but can't guarantee them. Actual delivery time will depend on the shipping method you choose.

Customs and import taxes

Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.

Payment Options

Secure options
  • Accepts Etsy gift cards

Returns & Exchanges

I don't accept returns, exchanges, or cancellations

But please contact me if you have any problems with your order.

Legal imprint