@yage IMO and with all due respect, I am a former Innuos owner and there stuff (here we go…) is overpriced and underpowered in my experience. I had a Zenith MK3 and the InnuosUSB as my Roon core server and streamer and it was outclassed by an Intel NUC I built myself for less than $1000. I am not trying to make your point, which I may have done. But what I am saying is that if you want to use a good purpose built streamer as an example, use a better one than Innuos. I can name a bunch. But I won’t right now.
Ethernet connection for best sound quality
As far as I'm aware of for streaming audio with tidal hi fi plus ethernet. I need; besides modem and router.
1) A Streamer
2) A ethernet card specifically for audio jcat or matrix if I use my computer
3) Shielded ethernet cat 5 or better cable
So from wall to modem to router to streamer to dac, correct?