Looks like snake oil.
I use a pair of Ethernet isolators in my home from EverStar at the end of very long runs, but mostly as a surge protection device. They work fine as best I can tell. The surge protection comes from the ability of very long cables being more likely to pick up an induced EM pulse (i.e. lightning pulse) that could break through the usual Ethernet isolation. The isolators add about 4kV of surge protection.
These network switches don’t “add” anything to audio per se …,what they are designed are to do is “reduce / eliminate “ network and router noise and jitter in streaming .
We all intuitively exercise caution on new things, but as I see it, unless you have a a high-end streamer in a high-end system, it becomes a question of cash outlay versus value received matrix debate , in the streamer noise floor reduction and streamer jitter reduction
“Price is what you pay. Value is what you get.”
Here’s a bevy of respected reviews - both text and YouTube - that assess these devices as “anything but” your suggested abbreviated edit as “snake oil”
I’m most curious as to what do the grassroots AGON-ers have to say based on their live experience. There are numerous alternate brands and escalating pricepoints ….
antigrunge2: You asked for opinions, and I gave you mine. If you are so easily offended, you may consider replying to a discussion instead of initiating one, and yes, I do make great use of my time by not even giving that device consideration, nor wasting time clicking at the links you provided. A data signal regenerator is the proper device for the job.
Jitter is not present in transfers since Ethernet doesn't work in real time (data in packets) and I doubt that electrical noise injected by the cable can affect sharp edges of DAC's internal clock enough to create audible jitter artifacts.
I you want to be efficient with your time stop sniping without experience. I use a Pink Faun Isolator with outstanding effect, so know that your comment lacks grounding in fact. And btw: nothing is further from my mind than to ever solicit an opinion from the likes of you.