McIntosh MC275 Vacuum Tube Powered Amplifier


Available in store only
Find In Store

More Product Details

Our product experts are here to help

Need help finding this product?

Model: MC275VI UPC: 842548102712 Item: 161170

McIntosh MC275 Vacuum Tube Powered Amplifier

An updated version of the most revered amplifier ever made, the MC275  has numerous improvements over its predecessors. Noise levels have been brought down to vanishingly-low levels thanks to a new input circuit. An improved internal component layout allows air to circulate around and up past the tubes for cooler operation. Best of all, McIntosh best, largest speaker connectors allow for easy connection of speaker wires regardless of their size and type.

Product Information

MC275 Vacuum Tube Powered Amplifier

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.

McIntosh patented, gold plated, 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 (see below). 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.


MC275 Specifications:


  • Power Output Per Channel: 75W @ 4, 8 or 16 Ohms
  • Number of Channels: 2
  • Total Harmonic Distortion: 0.5%
  • 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


  • Circuit Configuration: Unity Coupled
  • Circuit Design: Vacuum Tube
  • Mono Bridge: No
  • Mono Parallel: Yes, 150W @ 2, 4 or 8 ohms
  • Autoformer: Output Transformer
  • Meters: No
  • Meter Light Switch: Small signal tubes LEDs controlled by McIntosh preamp
  • Balanced Input: Yes
  • Illumination: Small Signal Tubes, LED
  • Chassis Style: Polished Stainless Steel
  • Gold Plated Binding Posts: Yes, New Style McIntosh

Weights & Dimensions

  • 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 (30.5kg)

Product highlights

  • Ultra-low noise previously thought impossible
  • Balanced (XLR) and unbalanced (RCA) inputs
  • Power control for automatic turn on/off with your preamp.
  • Detachable/upgradable power cord
  • Sentry monitor alerts you if a shorted tube needs replacement
  • Automatic turn-off (selectable) for longer tube life
  • 75 Watts per channel into 4-, 8-, and 16-Ohm loads.
  • Can be operated as a 150-Watt mono block into 2-, 4-, or 8-Ohm loads
  • Wide bandwidth past 70,000Hz in a tube design-amazing
  • Warranty: 3 years – World Wide Stereo is an authorized dealer for every brand we sell
  • Included: World Wide Stereo 60-day guarantee and expert product support



We'd love to hear your thoughts! Please leave a review.

Customer Reviews for McIntosh MC275 Vacuum Tube Powered Amplifier

There are no reviews for this item. Write Review


Customer Q & A

Have a functionality, compatibility, or otherwise product-specific question about this product? Ask it here! If you have a customer service or shipping question, please direct it to our customer service department

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 1 answer
how much for MC 275 vacuum tube bowered?
Vinh L on Apr 15, 2019
  The MC 275 is only available in-store. Please contact one of our PA showrooms for pricing and availability. Thanks.