Right now I have 5 speakers and a subwoofer hooked up to a reciever, and an HDMI cable going from my GPU(gtx 970) to my reviecever, and that is my playback for my sound. I do not like my reciever though, and am wondering if there is another way to use my speakers and subwoofer without it. Most sound cards I look at have a 3.5mm connector, but my speakers are just speaker wire that I twist into the reciever. Sorry I don't know real terms, I'm not that knowledgable with audio.