I am experiencing the dreaded "ground hum" in my subwoofer connected to my home theater system. Unfortunately, because of placement, I am not able to do some of the typical fixes (plugging it in to ...

I've got an Onkyo TX-SR606 that produces subwoofer hum. I've tried two different subwoofers with the same results. I've purchased new cables to connect the subwoofer to the receiver with no change in ...