Since I build a "high end DAC" with a 35lbs power supply I have used both CD transport (too many to mention) and server into the DAC using HDMI cable as I felt with was the best sound. IMO only, the two offered excellent sound but different. The transport offered a more emotional sound in our direct comparison. The server offered an excellent soundstage with really nice details. It was very nice to listen to but certain instruments just did not sound as emotional as the transport in direct comparison. I could live with either as long as I did not have to compare them side by side. Hope this was helpful. Happy Listening.