I bought it over 30 days ago ( of course so can't just return it ) but not sure what the problem is. the system is the Denon 5.1 receiver with Boston Acuoustic speakers. model DHT-589BA, I was playing some xbox 360 the other night and before I turned it off I heard a pop/crackling noise ( not listening to it loud at all nor have been ) and since whenever I turn it on I get popping/base noises/or whining noises till I shut it off. so is it the receiver? I have ALOT of cables all running together so my first thought was maybe static? or something... I've replugged the cables into the receiver to make sure their secure but nothing changed. Should I yank all the cables completely out and start over? I just dunno what to do it's worked fine for over a month. Thanks ahead of time.