Originally Posted By: ihifi
Be sure that you don't have any dimming capable lights or other similar fixtures plugged into any of the outlets that the subs are plugged into. A common source of humming are these types of electrical appliances.


I thought you may have hit the nail on the head with this one, as I did happen to have a dimming light plugged into that outlet. However, unplugging it had no effect. Continued in next reply...