@audio-b-dog Pass is great stuff. It leans warm. And so is the MA3. Combination of the two can create the type of presentation you’re describing.
As to network filters and isolators, I’m looking to try Matrix Audio SI-1 in the next few months. What this unit can accomplish in your case is provide isolation and enable you to use a shorter, higher quality Ethernet cable. The unit takes copper Ethernet in, converts to fiber internally, reclocks the signal and outputs copper again.
Here’s a discussion where several users reported improvements.
https://forum.audiogon.com/discussions/matrix-audio-si-1-network-isolator?highlight=Matrix%2Baudio

