The coaxial output of X3 works on my AV amp. But if you want to have this setup, remember to change the input mode to digital (rather than Auto), and cancel the HDMI input. I committed this mistake and thought it was the problem of X3. It is great to have a 24bit digital source. It will be much easier for me to play music with speakers. I guess lots of people who have hi-fi are interested in/have been finding a convenient digital source like this.
5/5/13 at 8:32pm