I may have missed this information in the review, but does this unit have it's own high quality DAC, so I can run the analog signal from the Discovery directly to my NAD T753 receiver? Or do I need to run the signal from the Discovery through a seperate DAC, thence into the analog inputs into the T753? I know that my T753 has it's own internal DAC, but I am assuming that there are better DAC's available now than what was available when the T753 was produced. I apolgise if this is a rudimentary question, but I am just starting to research and learn about putting together a "digital" source (internet streaming, internet purchase of HD music files, and copies of my CD's on a NAS) for my audio system.