I've settled on Ethernet. The setup is very simple: Oppo 205 XLR to a Nad M22 that drives a pair of KEF LS50s; the 205 sends below 80 Hz to a pair of Velodyne HGS-10s.
Ethernet or USB for streaming to Oppo 205
Is Ethernet or USB preferred for streaming to an Oppo 205? The 205 sits near a mid 2015 Mac Mini that runs Roon core. It recently replaced an ultraRendu with Senore LPS 1.2 and Ayre QB-9 DSD.