@wtb Bill, I was addressing the switch specifically.
No harm in trying out the passive ENO, or any other for that matter.
In your situation, I would choose an active filter. Primarily since (I assuming) your patch panel is using standard install wiring; it is an unnecessary added ’interface’: and because it is likely ’more detrimental’ than you realize: for music.
The last point is why I suggested running a fresh and direct line. What makes that not doable, in your situation?