Used to own a used PA-7, and I dispute the question of quality and reliability. When I bought it, it was about 11 years old, and although it was not really cosmetically clean, it delivered, for its price, a quite decent sound quality with lots of slam in conjuction with the proper power cord. It had huge fins, two large block handles and in no way was it unpleasant to see. I sold mine as a trade for about $850, and eventhough I have got better or more expensive amps now, a monoblock BLUE CIRCLE BC-2, a McCormack DNA 225 and an SET TUBE amp, and until recently a SONIC FRONTIERS POWER 2, in no way, I can solidly say that an used PA-7 was inferior in quality. Perhaps the only are that it was lacking was when driving very difficult loads...but with 200w+ per channel, it would definetly suffice to drive a wide range of speakers. What amp retains almost 50% of its value after 12-14 years of it introduction? MSRP for PA7= $1895, used price around $750-900.
PAUL
PAUL