McIntosh Laboratory
MC275 VI
Introduced 2015$7,500 MSRP
The MC275 is McIntosh's iconic all-tube stereo power amplifier, delivering 75 watts per channel in stereo or 150 watts in mono through Unity Coupled Circuit output transformers. Its chrome chassis, glowing KT88 output tubes and LED-lit small tubes have made it one of the most recognizable high-end amplifiers ever built.
MSRP
$7,500
Used market · Excellent
$5,080
-32% vs MSRP
as of Sep 1, 2026MSRP to used market
From $5,500 at launch to $5,080 today.
Specifications
- THD
- 0.5% maximum harmonic distortion at any level from 250 milliwatts to rated output
- Inputs
- Balanced (XLR) and unbalanced (RCA) inputs; one Power Control input
- SNR
- 105 dB
- Weight
- 67 lbs (30.5 kg) net; 75 lbs (34.1 kg) shipping
- Outputs
- Gold-plated Solid Cinch speaker binding posts with 4, 8 and 16 ohm stereo taps; gold-plated mono speaker jumper included; one Power Control output
- Topology
- class AB push-pull; KT88 x4, 12AX7A x3, 12AT7 x4
- Warranty
- 3-year limited warranty
- Dimensions
- 21.5" W x 8.5" H x 12" D (54.6 x 21.6 x 30.5 cm)
- Protection
- Fuse-less Sentry Monitor short-circuit protection circuitry
- Power output
- 75W x2 @ 4/8/16 ohms (150W bridged mono)
- DAC / Streaming
- None
- Tube complement
- Four KT88 output tubes, four 12AT7 and three 12AX7A small-signal tubes
- Power output mono
- 150 watts into 2, 4 and 8 ohms in mono-parallel mode
- Speaker impedance
- Stereo: 4, 8 or 16 ohms; Mono: 2, 4 or 8 ohms
- Frequency response
- Rated power bandwidth 20Hz to 20kHz (frequency response not separately specified)
- Power output stereo
- 75 watts minimum sine wave continuous average power per channel, both channels driven
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