So I got my first set of speakers and a receiver today. Both from eBay... I take many risks. I've set it all up and it works well for about 4 minutes and then the audio source goes quiet and a slight hiss can be heard. I've got my PC connected to my receiver, via the 3.5mm jack on the back of the pc to the auxiliary connection on the receiver. The speakers are connected directly to the receiver. The receiver is a yamaha rx-330 seen here -http://pgtech.strefa.pl/yamaha%20rx-330%205.jpg And my speakers are technics sb-f5's, seen here -http://img43.imageshack.us/img43/9821/img7279c.jpg This is the first system I've set up, so it could just be down to bad wiring. Could this issue be caused by my poor attempt? Cheers!