My recent experience with an audiophile switch disappointing. I have no filtering of any kind prior to router, Audioquest Vodka feeding router from modem and router to server. LPS on router. All my network optimization is post server. Over time I became convinced audiophile switch prior to server would improve sq. Quite the contrary, i much prefer no switch, seems my router with lps is providing everything I need.
My suspicion is the switch and its internal clock was one clock too many in my setup. My switch also had built in very nice quality lps. YMMV. I'll also second use of fiber conversion, that was a very nice additon!