I am also looking at this card to be the cornerstone of my new HTPC. I have a home theater, 123 screen, Infocus DLP projector, Paradigm speakers, and Anthem AVM-30 processor. My main goal is to be able to play the new sound formats. The problem is that my version of the AVM-30 does not have HDMI inputs but it DOES have six channel analog inputs (originally intended for SACD players). I intend to go with the daughter card with the analog out into the six (5.1) AVM-30 analog inputs.
I have a 7.1 physical speaker setup but if I feed the along out of the deluxe card into my AVM-30 as noted above I will be limited to 5.1 since the processor only has six channel in. Now, my separate amplifier has the full 7.1 speaker inputs but of course the AVM-30 is plugged into it. Does any sort of switch exist that would allow me to take the analog outs of the deluxe card directly into my amplifier effectively using the Xonar as my processor when I am in HTPC mode.
Should I even go through all of this to get the full 7.1 (if it's even possible) or is the 5.1 good enough. The Anthem people say that even with Master Audio you can't tell the difference between 5.1 and 7.1 with the new HD sound formats.