Axiom Home Page Forums General Discussion Technical Questions Hum from EP500

There was a post here from another EP500 owner who had been having hum problems as well. Seems like most of the problems are ground loops related to cable or satellite TV feeds not being grounded properly by the installer...

I'm going from memory here (will search in a minute) but I think the solution for the other poster was some kind of "isolator" from Jensen. My guess is that it isolates the ground from the cable/satellite RF feed but not 100% sure.

EDIT -- looks like an isolator in line with the sub cable was the final solution, not the one in line with the cable feed. Not sure I like the sound of that... I would still try isolating the cable feed first or (if you can find a service guy who understands ground loops) getting the cable grounding fixed would be best.

Do you still get EP500 hum if you disconnect all the external feeds (cable/satellite etc..) and just have (say) receiver and CD or DVD player ? Is all the equipment plugged into the same AC circuit ?