Hey, I just bought Logitech Z506 (I know, I know. Don't judge me, I'm on a college budget) and was curious if I could use an external sound card to bridge my 360 to these speakers to keep the 5.1 surround. The Logitech speakers have the green, orange, and black cables, but no digital in. That is why I was looking at an external sound card, such as this one. First of all, would this even work? Second, would it output the sound in 5.1? Thank you for any help.