ARC D-79B and D79 were quite good. ARC made a lot of underachiever tube amps.
What’s the most underrated used Audio Research gear?
Sure, everyone loves the SP-8, SP-10, etc., but what about the sleeper ARC gear that’s still a good deal used? Recently got a used SP-17 and love everything about it for the price, but it got no love from either the press or the boards.