That annoying hummmmmmm . . .
I swapped out my DVD Player (sony ES9000 SACD/DVD) in order to try a newer unit that supports HDMI and I am experiencing this very annoying hum through the speakers. Not sure if it is ground loop - Why would there not be a problem with the higher end unit? I have had the sony serviced a couple of times for a faulty transport and every "loaner" they gave me had the same problem. This has happened in several different houses over the years. I have trouble shot this to death - disconnecting cable feed, swapping out cables, cheater plug, etc. Does anyone have any suggestions? i have two acurus amps, a three channel and a two channel, and an energy sub, as well as an acurus act III processor. It is driving me nuts! Thanks folks.