Thank you for your feedback, I will go to Radio Shack and get the isolator. The Rel is in one power conditioner and the BAT is in a different one designed for high current. When I ground to the BAT chasis, the hum is much less then when I use the pre-amp chasis ground so there is some interaction even when nothing is hooked up.
Ground Loop Hum
Hello, I am looking for help eliminating the hum I get in my subwoofer. I have a Rel B1 and am using the high level inputs. The Amp I am connecting it to is a BAT VK-600. Based on the documetation this should be treated as dual mono blocks so I have the two hot wire connected and the ground going to my pre-amp ground. I have tried different grounds including the one on the power conditioner. I have tried all the normal tricks of moving where the cable runs, unpluging all other componets, etc.
Any thoughts would be appreciated.
Any thoughts would be appreciated.