Originally Posted by
sherwood
How is the system wired and what kind of system is it?
Is it full on uncontrolled feedback or more like a reverb or delay?
It's more of a low hum. I don't know what kind of system it is, but i do know it happens on many different systems. We hire people to come in and do karaoke. The TV is always the same one, and other TV's work fine.