i just tried it...
im not shure w´hy that is but i cant seem to get 5.1 output with it..
it allways gives out 2.0
in LAV it also reports input 6 and output 2.
i cant see where the error is, as soon as i select the normal audio renderer again, i have back my 5.1...
if you find a solution or can make an little tutorial how you managed to set it up, i would really like that..
greetz