I just moved in to my new ht basement & have an annoying hum coming from my speakers. I have the same components as my previous family room set up...which was hum free. The basement has a 20 amp dedicated circuit. I've isolated the receiver as the culpret by turning off the sub amplifier, satellite, dvd, etc. With just the receiver turned on I have a noticeable hum coming out of the speakers. I tried plugging the receiver into two other outlets w/ the same result. It is currently plugged into a Panamax line conditioner, which is plugged into the dedicated circuit. The receiver plug is two pronged. Any ideas on how to fix this? Thanx!!!