Tomic/Jim, in answer to your questions: I’m using an Aurilac Vega dac (the original version). It’s working well but I’m considering a newer model—Aqua, PS Audio and others. Compared to the Naim Unitiserve, the Innuous has a solid state hard drive (not a disc drive), it has accurate information when copying discs (the Naim often had inaccurate data and required manual entry to get it right), it’s compatible with Roon, and the sound is superior. Not sure I can put the superiority into words. It’s detailed, and lifelike on good recordings. The sound stage is wide for large scal music and focused with smaller scale work. (my KEF Reference 5 speakers contribute a lot to this). Hope that helps.