Wow !! "O" Wow !! Did you check out the McIntosh 2
Post# of 17650
The MC275 briefly returned in 1993, in a limited "Commemorative" edition to honor the late Gordon Gow, longtime president and chief designer of McIntosh Labs. To everyone's surprise, that edition sold well, and McIntosh, gingerly at first, crept back into the tube business. And they are still there.
The only " Class A" I would consider otherwise would be "Boulder 3050 Amplifier"....You will need to be strapped in with a 5 point harness when you turn that one up and you're facing the speakers....and be sure to tune the acoustics of your room with a "Pink Noise Generator".
Regards
Sunny:>))