Entachuldigung, but my Deutsch is out of practice for technical discussions without a Ayinger Jahrhundert Helles in my hand (zu früh). Only difference is Coax digital out, optical input, multi room hi-res capable, and ethernet. Depends if any of that is important. I have a mini and a pro each into a Schiit Bifrost 2 and there is no appreciable difference in 24/192 performance.