I am using a Parasound C/BT 2000 (belt drive), Harmonic Tech. Copper Cable, Audio Alchemy DTI Pro, Madrigal Digital cable into the DAC-1. I am using Harmonic Tech Truthlinks into my preamp, but I have also used MIT Terminator 2 i/c's with success. For fun, I have put the Bel Canto into my second system where I use a Marantz CD-94 and AA DTI 2.0 as a transport and it sounded fine. I have not been able to try a DVD player as a transport which is what Bel Canto recommends. The only all in one player I have recently auditioned at home was a Rega Planet and my old Micro Mega Mini-dac sounded just like it, if not a little smoother. I have heard the Wadia all in one players in dealer demos but I think my Bel Canto sounds smoother with the same or better resolution. If you can get a Pioneer DVD player for $200, a used AA DTI 2.0 or pro, and the Bel Canto DAC, you would probably have a world class digital set up for less than a high priced all in one player.