I'm looking for a set of 5.1 headphones that I can hook up to my Xbox. The xbox can output a 5.1 optical or coax DTS signal. I've been looking for a set of headphones that comes with a tiny DTS decoder but the only ones I have found come with the 3 plugs that go into a computer sound card. I did find one optical headphones but they were $300 far above my budget(College student). Are there any headphones out there that support a digital signal and can decode a 5.1 DTS signal? Also I was curious if there is such a thing as a 5.1 DTS DAC that I could use to plug into the headphones for computers?