McIntosh MC275 Mk II
The record on the MC275 Mk II is thin. Most of what's written about the "MC275" covers the original 1961 amplifier, which delivered 75 watts per channel in stereo (or 150 watts in mono) from KT88 output tubes. That original is widely regarded as one of the greatest tube amplifiers ever made, and it has been reissued multiple times. The Mk II is a later variant, and little is documented about its exact production years or what set it apart from the original design.
What we know about the Mk II comes mostly from a single surviving listing for a unit described as the "MC-275 MK-II Gordon J. Gow Commemorative Special Edition." That example was re-tubed with a brand new set of McIntosh KT88 tubes, with less than 20 hours of use at the time of listing, and it came with its original tube case. A former McIntosh employee who does service work in the area had just serviced it. The asking price was $5,500.
No power output figures, dimensions or original pricing for the Mk II have surfaced, and no period reviews of this variant have been located.
Known details, in brief:
- KT88 output tubes (re-tubed set included with the surviving example)
- "Gordon J. Gow Commemorative Special Edition" designation
- Original tube case included
- Surviving example serviced by a former McIntosh employee, listed at $5,500
The MC275 line was introduced in 1961 and is still in production in some form today. It is well documented. The Mk II sits in that family, but the specifics of this revision remain undocumented.
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