I am grateful for everyone who is reading this thread. I have got my HD800 with HDVD800 like half a year ago. This suit is great for classical music and some new age musics. However, in my personal opinion, HDVD800 is a good amplifier, but not a good DAC. It focused on classical music too much.Since I am using my PC to play musics most the time, I really need a good DAC to improve my listening experience. So, any suggestions will be fine, please leave ur points.