Audio Grade Ethernet Cable

@goofyfoot I am occupied at present, will get back to you. 

I went back and forth on this... seems to be different takes = one side is a "bit is a bit" and it doesn’t matter, the counter that the last 3 ft do matter.  I was skeptical...but I am doing the last few tweaks to my digital path. I picked up three from the TheCableCo. One from wall to switch, one to my Aurender N20, one to my TV. =  DH Labs Silver Sonic
Reunion CAT8 Ethernet Cables & a used (half price) Synergistic Research
Ethernet Switch UEF to feed the path into my audio room...it made a difference, even the TV path had notable improvement. A good review of the switch is here along with upgrading ethernet cabling...https://www.enjoythemusic.com/magazine/equipment/1121/Synergistic_Research_Ethernet_Switch_UEF_Ground_Block_SE_Purple_Fuses_Review.htm.  I am now going down the rabbit hole of grounding.  Ethernet cables, for the price point, are so much more economical compared to interconnects, power cords, and speaker cables. If you finalized these first (in a digital path the interconnects really matter), then I would offer it is worth it for the final digital path of your system.
 

I'm also looking at the StackAudio Smoothlan Network Filter. Has anyone tried this?

https://stackaudio.co.uk/smoothlan/

I haven't used internet provided modems or routers for many years. Providers servers not more than 30 miles from me so ping times very fast, also have 1gig service so fast download, upload speeds, finally gaming router for low latency. 

I did purchase a nice audiophile switch a couple years ago, sound quality diminished with this addition, overly precise image outlines, sound stage lacking in  spaciousness. In my setup switch adds two needless LAN cables, and of course the switch itself. I'm not alone here, see much variability reported with these switches. Same goes with all the various filters out there. 

We've long heard the same argument used in regard to AC and the last few feet.