Not really worth much of anything. The quality just wasn't there. Especially the speakers. Knobs sometimes felt like they were going to fall off in your hands and when you pushed a button in, that it was going right into the unit and get stuck. These rack systems were designed to sell at a certain price point. They were popular for about 5 years or so. Sanyo/Fisher got into the market very early and probably sold more of these than all the others combined. But Technics, Kenwood, Yamaha, Pioneer, etc. all did it. The early Yamaha ones were probably the best, as the first ones were regular models repackaged, but that changed pretty quick. The speakers were the worse pieces on every single one of them. That's were all the profit was.
On Sanyo/Fisher units, build quality was horseshit, but the amps didn't really sound that bad and were pretty simple. Dead channel is usually an output fuse or at least was back in the day. Speakers were really awful though. We used to blow them for fun back when I sold them. TT's and tape decks were really lousy also although still better than today's Crosley crap. The tape decks and tuner usually needs the amps power supply to work. I always called them the eighties version of a sixties console system.
Retailers loved these things because they sold at a 30 point or better profit margin and was a $400-$800 or better, sale in one shot. I kept food on my table by selling these but I have never had any desire to own one. Still come across pieces of them or entire systems once in a while. The amps usually still work.
