@yyzsantabarbara EtherRegen doesn't support QOS, so there is that. Need managed switches for that, and EtherRegen is not managed. And while you can configure a lot, most QOS configuration do not limit or prioritize anything until you hit the defined congestion threshold. However, EtherRegen, if you have a congested network, by design, can cause issues, since you have "A" ports that are gigabit, and the "B" port that is supposed to go your streamer/dac, which is 100Mbps. If you are pushing over 100Mbps on the "A" side, and for some reason push it to the "B" side, you will introduce packet drops. It is even possible that the EtherRegen will flood the "B" side with everything going on on the "A" side. UpTone does not give any type of specifications for this, or any other specifications at all, only "ultra low jitter" and "ultra low noise" without and numbers.
What we do know about the UpTone is that they use cheap components according to their own pictures of the circuit board.
Did you ever think about this in a objective manner?
1) Uptone provides 0 specifications
2) There is no measurable improvement to their claims
3) There is no theoretical improvement to their claims
4) They use cheap components
5) Some people hear a different, but others do not.
Maybe there is a confirmation bias involved, maybe?'
You are the one who brought in the money, I get it that you feel stupid when you thought I had a $500 marantz receiver from BestBuy with a Klipsch $300 bookshelf pair, but if you want to argue that Classe Audio for Pre/Power is not good quality, you are in a league of your own, and will really feel stupid.