mysoundfiles

The 4th of July weekend required I break out the vintage McIntosh MC275 amps not from a historical perspective but out of necessity. The Acoustic Research Reference 160M seemed flat after a proper warm-up and system test. Flat enough, that motivated several tests, followed by swapping the amps with the previous champions of my system, the MC275s. However, for this quick swap, I used 2 of the MC275s in mono-block mode or a straight swap-out with no changes to the speaker drivi