Just picked these up yesterday. Incredible sound. I know, it's crazy to spend $350 on a set of speakers for your PC. But damn, how is it any different than spending $350 on my video card? It's not really. LOL Anyhoo...I've been building pc's forever. But what's got me curious, because I've never really looked into it, is how does sound get produced from a USB port? These Bose plug straight into a USB, and don't require a sound card at all. I guess the "sound card" is probably in the sub?