I am on Win7 using Creative SoundBlaster XFi Titanium Fatal1ty Professional series. The card works well however I would like your advise if it makes sense to upgrade to another card to obtain better sound quality: I have noticed that if I output via SPDIF to the Logitech Z5500 speakers that the quality is quite good. However as the DAC in the Z5500 is considered below par, I tried decoding on the card and sending analogue 5.1 info to the speakers. The quality difference is fine (spdif has better dynamic range and better SNR meaning when there is real silence in a film I do not get any noise). However I was thinking that a sound card with better DAC, like Asus Xonar D2X might improve the quality of the overall systems.
thanks a lot