Hi everybody, I have question about adding a dedicated sound card to my computer. First off i have an Onkyo TX-NR616 receiver in 5.2 mode for now for my computer stereo. The speaker towers are JBL N38, it sounds really good and clear at really hi levels(THX Ref). The receiver is plugged into an APC(to smooth out the power coming in to it). It is all connected via S/PDIF. Would i be able to notice any difference in audio quality if I added a dedicated sound card(ASUS Xonar Essence STX Virtual 7.1), or just stuck with the Realteck ALC892 chipset built into the ASUS M5A99 EVO R2.0 motherboard. Currently I listen to all of my music in WAV format. Any and all suggestions or comments welcome, thank you for you time.