My speakers are buzzing. It's coming from the tweeter and the woofer, the sound from the tweeter is obviously hiher then from the woofer but both are buzzing. I'm not sure what it could be, I've never noticed a buzzing before. It could be the ****ty ratshack and stock dvd player cables am currently using, it could be the dirty power in my house, or it could be something wrong with the preamp and amp. What do i need to fix this crap? It's really annoying, especially when watching a DVD because its really noticeable.