...thanks everyone but what the hell is a Hum X from Ebtech. The system is on a seperate circuit that my cable TV, I worked with an electrician who moved the ground wire of the cable to a difeerent part of the circuit box......did not work.
01-18-14: Garebear
I worked with an electrician who moved the ground wire of the cable to a difeerent part of the circuit box......did not work.
What exactly did he do? Did he go outside the house, locate the CATV Company's coax cable grounding block and rework where the block is bonded, connected, to the main grounding system of the electrical service of your home?
IF,..... the audio system is connected to the CATV system and the CATV company's feed coax cable shield Grounding Block is not properly bonded, connected, to the grounding electrode system of your home's electrical service a difference of potential will exist between the coax shield and the equipment ground used at the electrical receptacles your audio equipment is plugged into. That difference of potential will cause a ground loop hum.
SIMPLE TEST......
Disconnect the Cable Company's coax cable from their Cable box receiver. It will take you about 30 seconds to disconnect the coax cable. Check for hum......