After exploring several brands of LAN cables, I finally found a brand that sounds terrific and doesn’t cost a fortune. I’m currently using a loom of Triode Wire “Freedom” cables.
https://www.triodewirelabs.com/product/freedom-ethernet-cable/
The descriptor that first comes to mind is “natural” sounding. (DDK’s favorite word!). And natural they are. One can listen for hours and not think about the sound characteristics of the cable, but instead focus on the music. My “loom” consists of a 2m run from the wall jack to the Apple Extreme Router (house is wired with Belden Cat6); a 3m run from the Western Digital NAS drive to the Router, and an 8m run from the Router to the Innuos. Honestly, I know nothing about ethernet cable and don’t really want to know. But the TW Freedom cables are keepers for now. And reasonably priced to boot. All 3 cables were about 1K. They were delivered promptly and appear to be beautifully made.
I can’t help but wonder if, just like signal and power cables, the sound of ethernet cables is in part due to the wire, and in part due to the terminations. I’ve noticed that like many other high quality ethernet cables, the TriWire cables use German RJ45 connectors from Telegaertner.
https://www.telegaertner.com/en/info/highlights/mfp8/straight-version/
My guess is that they contribute to the cable’s excellent sound, but as to how much, I really have no idea.