very nice looking hardware, and reasonably comfortable headset. however, i recorded a msg on xbl and it sounds like i'm underwater. have to do more testing, maybe try a different controller. i think voice was better on ps3 but hard o tell since couldn't figure out how to record a msg like on 360. ps3 uses wired voice via usb.
The mixamp is the standard for headphone ampilifiers with surround sound, but they are only 5.1. Turtle Beach is coming out with one with 7.1 sound for $89.