新手一問(同軸/光纖)

Cooly,

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