Ethernet Cables make a difference

[Rufus McDufus]

Although streaming audio over ethernet is typically done using UDP which is better for real-time transmission but does not retransmit. I believe from someone's analysis of Devialet AIR on this forum a while back (apologies I've forgotten who it was) it looks like the Devialet AIR protocol does have some sort of inbuilt error checking (and retransmit? edit - no, it couldn't could it?) to make it behave a little more like TCP.
Ethernet NICs do have (or should have) galvanic isolation built in, which I believe is effective against common mode noise but doesn't protect against all forms of noise. I suspect Devialet would have put a standard off-the-shelf NIC in their amps.