@rifraf4u
re ROON and sound quality, in my experience ROON enables perfect implementation of signal transmission via WiFi. I run the ROON core on a (dedicated) MacBook and distribute via WiFi (LinkSys mesh) to two OPPO 205s. Works perfectly, in case of doubt better than USB (to the OPPOs), but this is a marginal ‘better’.
re Ethernet cables, I agree as far as bit for but transmission is concerned. But these cables can carry power, act as antennas, and the more you go up the ladder (CAT 5 -> 8) deal with switching frequencies. There is potential for contamination. WiFi connection minimizes that.
Finally, much to my surprise, inserting a powered Netgear switch between my router and distribution box (house is CAT 5 wired) resulted in clearly better image quality on SONY 4K screens around the house. I can’t say I have now better sound, but this is an indication that there is Ethernet related contamination which can make it through…
All the best!