Which Ethernet filter?

This has been posted elsewhere but it’s a dang good read (and/or a good soporific).

Understanding how perturbations on digital signals can affect sound quality without changing bits, and how these issues are addressed by the UpTone EtherREGEN. By John R. Swenson

That's right, it's all about voltage, isn't it?

@wsrrsw , thanks for that.  I'd really love to try both of Uptone's ethernet and USB regenerators.  Could be a while though, I guess.

I managed to find two old-ish TP-Link MC200CMs with cable and power supplies for £11 on eBay, and I think it might be the best SQ improvement I've ever made (even better than the speakers' Gaias).  The bass definition, dynamics and transparency have all gone up a level.

At the moment I have a 30cm Sotm dCBL-CAT7u ethernet into the Zenith.  I'll play around with different ethernet cables, and maybe reintroduce the Sotm ISOCAT7.  I've also got an Ifi iPower X on order for the 2nd MC200CM.

But wow!  Exciting times.  I can't see myself not trying a Sonore opticalModule when it becomes available again. 

I may try the optical Ethernet adapter bundle from Small Green Computer. A lot cheaper than the EtherRegen or the ENO filter, and SGC claims it’s as effective or moreso. sGC has a 30 day return option if I don’t hear an improvement.