Okay so I had this problem before but it magically disappeared on its own, until now where it's back with a vengeance. The right channel of my speakers is putting out a hissing staticy sound, like a de-tuned radio, over the top of whatever input it's receiving. I figured out it's down to when it gets fully turned off at the wall, and it went away after a few hours of listening to music, but now no matter how long I leave it on it's still there. Any ideas what's causing this?
