@blisshifi I see from your awesome system you are all in on Synergistic Research. They make great stuff for sure. Hope they send you a Christmas card.
For moi self I have determined rightly or wrongly that using a switch and a filter is too much in the feed. Pick one. Not all ethernet set ups will allow for this. In a closet upstairs I have an enterprise (Ubiquity) switch feeding into the wall a cat five runs and one run to my "stereo closet" and then from the closet wall cat five into the EtherRegen. The EtherRegen will get moved to a whole house system (if that helps that low-mid fi system ??). I'm still on the fence as to what PSU will power the M12.
@fastfreight I'm in NoCal