Cool, I had that Amp, the hum was unreal, it would hum Loud when it was off on standby and kick up in the morning when the Mr. Coffee came on. It blew fuses and Tannoy drivers with abandon. Go to eBay and find those amp fuses now. Kicked ass tho.
Krell KSA 200s ground hum
I picked up this amp a week ago and I REALLY like it. When I first plugged it in with nothing attached except speakers it was silent. Like small hiss from an inch away but one of the more silent pieces I have had. As soon as I hooked up an rca from my preamp there it was. Loud ground hum. So right now I have floated the ground with cheater plugs on everything in the chain. Silence all is good with the cheater plugs and the system sounds great. If I take the cheater plug off of any of the 5 pieces in the chain it’s back! All same outlet and dedicated 10 gage line. I mean I’m “ok” with the cheater plugs if need be but…….. any ideas?