Are Nakamichi amps any good?

Nakamichi amps NEVER had a "reputation" for being unstable. They were a Nelson Pass design and well-respected when introduced, and still popular today.

They made a PA-7 and a PA-7 MK-2. The MK-2 is a better amp but hard to come buy. If you can find one at a good price get It. they are hard to find in mint shape tho.

I had remembered minor problems with these units from my years in the business, went to my old Tech, he said that the Nak amps had protection circuits that were a bit touchy and all in the original PA 5/7 really need to be replaced, but the series II didn't have that problem... Also on the Original PA series, there were minor issues with bridge rectifiers. He said that they certainly had to deal with those problems, but overall a sweet design and very stable amp.

Well, that's 2 techs who say the Nakamichi amps had reliability problems. Whether that's touchy protection circuits or bad bridge rectifiers, minor or otherwise.

I think it's safe to say that TonyKay is wrong and that Nakamichi amplifiers (regardless of how splendid a designer Nelson Pass might be) had issues.

As I understand it, Nakamichi bought the licensing rights to the Stasis technology from Threshold, Nakimichi presented their version of Stasis amps to Nelson Pass, who briefly tweaked it, and then Nakamichi went on to manufacture it with Japanese parts and construction.