TheFlash
Member of the Trade: Reiki Audio
I understand the principles and why the ER has such a loyal following; I was pointing out (1) that galvanic isolation is not just an ER thing and also (2) that total galvanic isolation may not be enough. For example, if a case has holes in it for cooling then RFI can enter the case and if a switch has LEDs then it will be generating additional RFI of its own. I wasn’t previously talking about just the ER and I’m not now, I’m merely pointing out some principles folk might like to consider beyond galvanic isolation when choosing a switch.Switches don't have a designated input and output, all the ports are interchangeable. All switches have transformers, but they do not completely isolate in the way the EtherRegen does. I don't know of any other switch that completely isolates inputs from outputs like the ER.
"The transformers in Ethernet ports are galvanic isolators—they block DC—they also block low-source-impedance AC leakage. However, high-source-impedance leakage sails right through them."
https://cdn.shopify.com/s/files/1/0...enson_EtherREGEN_white_paper.pdf?v=1583429386
I will never have a powerline extender in my home, because it injects a high frequency signal into the electrical system, which must then be dealt with by every audio component connected to the electrical system.
There are several aspects of that paper which are arguable but that’s not for here.
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