Basic switch....should I upgrade?

Many different takes on switches continues. I agree, lps on present switch is good way to go.

In my case, not convinced of using any switch, Netgear router with lps better than audiophile switch, or any switch for me. I recently went FMC route between router and server, nice, better than the switch in same position. Acoustic Network Muon filter will be compared to FMC in this position soon.

In any case, can't hurt trying everything and reporting back, adds to knowledge base.

@wsrrsw  I highly doubt you will find a 5 port enterprise switch, but you can probably find 8 and definitely 12. 
 

In theory, cleaner power improves poor circuitry more than good circuitry, as good circuitry is made to operate with a much more narrow acceptable performance range and higher performance threshold, regardless of the input. Is audible however, maybe? 

If you want really clean, most enterprise network equipment can be made to order with DC input. 

@fredrik222 Did you glance at specs for the Angel Boom? That’s not in my wheelhouse.

@sns (Nice System!!!) The EtherREGEN has a fiber optic out and I want to use that as I’m certain using the EtherREGEN is a definite improvement. But like my hard to suss question will a switch in front of that also matter? Most likely yes.

Please provide a running count of all the different boxes (components and power supplies) and bits of different types of wire that reside between the cable outlet on the wall and the preamp.