afaik you cannot use both at the same time for music, but something like ingame voice chat in flight simulator X and similar you can pump voice audio through usb while other audio(engine sounds/etc) through speakers.Hey, I just picked up one of these today and I purchased the one for usb. Now when I installed it and restarted my pc, I could only hear sound from the headset and my speakers no longer worked. I need to find a way to get both to work. Anyone have any suggestions?