Also, experiment by plugging your receiver into the input now used by your CD player (which you already know does not hum) See if you can still get it to hum. If so, it is your interconnects, or your receiver or the 'improper grounding' monster.
Krell KAV300i help
I just bought a Krell kav-300i on Audiogon. It works great, just one problem. I hooked it up to my Marantz sr5300 receiver using the Theater Throughput input to watch a movie but there was a very noticable hum from the speakers. It works perfectly hooked up directly to my cd player. I'm using the front L/R preouts on my receiver and I have selected "proc" inside the Krell.
Any help anyone could provide would be greatly appreciated.
Any help anyone could provide would be greatly appreciated.