Strange Sound: Hiss & Clicks

[BoschRock]

Well, tonight I was re-arranging my room and I noticed a strange noise coming from my speakers. It was a hiss that would not go away--not when I turn the sound down or muted the sound completely--as long as the receiver was on, I could hear the sound. What's even stranger is the fact that I could hear a click in the static/hiss (it sounded similar to the sound speakers make when you have a cell phone near, just before your cell phone receives a call).

I know most speakers hiss, however, I could hear the noise from 3+ feet away.

What is wrong?! I am about to go crazy!