Your A-N DAC 2.1 is near-SOTA and should be killer with a decent USB source, like a Mac (Mini or otherwise) USB to the DAC (what's with the Squeezebox????) playing CDs ripped **LOSSLESS** with error-correction **ON**.
I doubt you'll find a transport to beat that, perhaps at any price.
I doubt you'll find a transport to beat that, perhaps at any price.