After doing a lot of research for my new computer I had finally decided on buying an asus xonar DX and a fiio e17. I was just about to buy everything when I came across a review that stated that dolby headphone only goes out through the headphone jack. Is there anyway to force it out through spdif so I can connect the e17 (through the unified drivers perhaps)? If this is in fact impossible is there a suitable alternative (I don't really have a fixed budget) such as a creative card with CMSS-3D Headphone out? I plan to use these with either the dt990 250ohm or the dt770 250ohm - are these good choices or are there better alternatives?