I just placed an order for N20. I was contemplating between N20 and N200 because my set up was USB. My dealer, Scott Walker in Anaheim, came to my place and set his demo unit up so that I can compare USB through Chord M Scaler to Dave DAC vs. AES/EBU direct to Dave. AES/EBU was clearly better. Much more natural sound, better dynamics, bigger sound stage, etc. It took less than 5 seconds of music for all 3 people present to unanimously pick AES/EBU as the much preferred connection. We listened different kinds of music just to be sure, but the difference was not subtle at all. I ended up trading in my M scaler and ordered a new N20. BTW, using the conductor app on my M1 Mac mini via big screen is great. More stable than Roon.