Apologies in advance - this strikes me as either a stupid question, or one with a very obvious answer. However, I can't find it anywhere, so I've got to ask! I've got a PC that I want to use to feed the redundant set of speakers that I currently have mounted in my living room. Problem is, the PC has stero jack outputs, which I can find no way of using to connect to normal speaker cable. Is there some way of going directly from a PC to speaker cable? Or will I have to feed it through an amp first?