Cheap tweaks...What would YOU reccomend?

I met a guy named Rob (his partner Rich) owners of Eno Acoustics and via casual conversation Rob directed me to try adding an basic ethernet switch between my streamer and router to see if I see any differences. Though this is common knowledge amongst most people that taking away noise from router being common sense, I had no idea myself and always just put my ethernet cable direct to router.

I am thankful that Rob directed me towards such a simple upgrade as it improved my sound quality quite a bit. It seems as though their main product is the ethernet filter (used after any ethernet switch you choose) and the product was never mentioned to me until I looked into it myself.

Very appreciative of the nudge in the right direction and feel an overwhelm amount of feelings towards how this is not more common knowledge.

^ Sorry the company name is Network Acoustics, their main item is called the ENO or the MUON, an ethernet filter placed in the chain prior to the streamer and after the ethernet network switch.