highendtron
Senior Member
I have a client that has two large speakers around his big screen TV 52" that thump when he cycles power on them. He ran twisted pair speaker wires along the back of the wall for the length of the room and has the speakers at both room corners. Both speakers are powered by wall receptacles along the same wall.
I had him run an extension cord from a different room (different circuit than the one in the TV room) and the speakers still made a noise when power was cycled. I thought that the speakers may have been picking up an induced field with the room conductors/circuit. I also told him that we might try running a pair of twisted wires in shielded cable. The floor above and below are finished ceilings so running wires perpendicular to the wall receptacles is not cost-effective . Any other ideas would be appreciated.
I had him run an extension cord from a different room (different circuit than the one in the TV room) and the speakers still made a noise when power was cycled. I thought that the speakers may have been picking up an induced field with the room conductors/circuit. I also told him that we might try running a pair of twisted wires in shielded cable. The floor above and below are finished ceilings so running wires perpendicular to the wall receptacles is not cost-effective . Any other ideas would be appreciated.