I purchased a PL 4000 series 2 preamp and PL 400 series 2 for 325 dollars. I had to send them both out for repairs but when I got them back the sound was amazing! Purchased 2 years ago and is my favorite setup in my living room.
Wrong. Gene Cerwinski and Cerwin Vega launched a 2x125 watt solid state amplifier in 1954, and was discontinued in 1959. Before that he made 10000 watt sonar amplifier for the navy, via Bendix corporation. This was also based on solid state technology.
Even Bob's modest Phase Linear Model 200 MKII was a decent sounding amp with current to boot and not expensive. In that regard Bob was competing with David Hafler who's mos fet amps like the DH 200 were also a great amp for the buck. Ah, the 1970's...