Nakamichi PA7 versus PA7 II


What is the difference between Nakamichi PA7 and PA7II?
Also,are this amps classA?
Thank you
walther
Just sold my beloved PA7 was the original owner and had it for 25 years. It was a very balanced amp with a beautiful and detailed midrange. I dont believe you can find a better amp for $700 - 900 dollars. Never had one problem with it and was still sounding like the day I bought it when I sold it.
" The PA 7 ran into class A, more than the PA 7II, which meant, a warmer sound than the PA 7II. "
Total BULLSHIT
I own a PA 7ll and Ive listened extensively to a PA 7  The ONLY difference between the two is the upper wiring, the latter being a birds nest of wires aka "Cottage industry" wiring vs Nakamichi's professional job of cleaning it all up and adding a few more watts.
BOTH amps are stellar and neither is "the ONE to own", they BOTH are.
Can it do well with thiel cs 3.6? Dips to 2.5 ohms for 65% of its frequency range.