Why do I need a switch?

Like @panzrwagn posted, an Ethernet switch doesn’t make a bit of difference. People and companies who claim otherwise are being disingenuous or perhaps ignorant at best.

@markprice here is the reality, these products are snake oil, through and through. If actually measure what comes out of your speakers, there would be 0 difference. 
 

that said, you are subject to your biases, and your brain interpret things differently.

@fredrik222

oh dear, oh dear, oh dear,

my ears are my measurements, that's what I go on. I don't buy anything until proven so. You obviously interpret your biases by listening to your measurements 😂 good luck with that!

@curiousjim I you put in fiber you won’t need a switch. 

Only when you add more digital stuff into the signal path can you add the highly desired pixel dust. It makes the zeros rounder and the ones straighter.