ASUS use alot of high end components which is for analog conversion use.
Try to use Analog out to your headphone / preamp and compare with Digital out.
Can you post a close up to that sound card, I want to see what SPDIF transmitter is using.
Or, you can reconstruct the digital signal (IIS to SPDIF) by another dedicated SPDIF transmitter IC.
KKHo[/quote]
Hi kk,
I just found a review of Xonar with close up photo.
http://www.4gamer.net/review/xonar_d2/xonar_d2.shtml
SPDIF close up:
http://www.4gamer.net/review/xonar_d2/img/10.jpg
I have tried using brandless RCA-3.5mm cable analog for connection, I found the sound become warmer and less digitalized feel, but the resolution was dropped a little bit. It should be caused the poor quality of my brandless cable
Now i am deciding to buy an Coaxial cable for multi-prupose or buy a high quality RCA for playing music by analog.:roll: