McIntosh MC275 Mk VI
The MC275 Mk VI is the current-production version of the MC275, a McIntosh tube amplifier line that goes back to the original MC275 in 1961. The archive has solid documentation on the MC275 family in general. Documentation on the Mk VI itself is thin. Most of what circulates comes from enthusiast forums and resale listings, not formal reviews or a dedicated manual.
What the available sources do make clear is that this is a vacuum tube power amplifier. In stereo it delivers 75 watts per channel into 4, 8, or 16-ohm loads. In mono it delivers 150 watts into a single speaker at 2, 4, or 8 ohms. It is still in production, and sellers describe it as the "current-production model" and the "current version MK-6." The design has been in production for roughly sixty years.
The Absolute Sound noted that the MC275 MKVI, paired with the C22 preamp, delivers "a stunningly warm and immersive audio experience that captivates listeners." Forum owners sound just as enthusiastic. One user explained a decision to part with a Mk VI only because they had bought an MC2000 Commemorative amp and couldn't keep both. That choice was driven by aesthetics and collection cohesion, not any dissatisfaction with the 275's performance.
Known specs:
- Vacuum tube power amplifier
- 75 watts per channel (stereo), 150 watts (mono)
- Stereo loads: 4, 8, or 16 ohms
- Mono load: 2, 4, or 8 ohms
- Current production model
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