I just bought a Pioneer VXS84TSXi receiver which has a USB input. A standard USB
A to B cable can be connected to a PC or laptop for streaming audio from the
computer through the receiver. You don't say what receiver you have but depending on the inputs you might be able to do something like I'm doing. I haven't actually tried this though I have it hooked up. As I have 5 or 6 other
sources for music and have only had the receiver for a few days it just hasn't
been a priority but when I get around to testing it I'll let you know how it sounds.