In my tests, I did not hear a degradation to the sound when I compared it to powering them by separate power supplies. I also had the impression that powering both of them with this LPS improved somehow the sound, but the difference was so subtle that I’m not sure that it really exists.
If that is the case… then optical is superfluous in this scenario…
It’s not superfluous, because it is still necessary to eliminate the electrical noise of the servers.
You are coupling the chassis grounds through the LPS power/ground circuit… this will not eliminate the noise if it exists…
And what’s the difference if I do it with two devices that are located after the fiber?
It’s the same thing, no?
If the endpoint components are isolated by the optical link, together they should be sharing the same power/ground plane however you choose to do this… Then those components will be on their own power/earth island…
What you say is what I was doing during longtime. I changed the way I power the switch when I got the EtherRegen.
I’ll proceed with new listening tests to check again if I hear a difference. I don’t mind to power the switch with its standard power supply, because I did not hear a real improvement while powering it by the LPS of the EtherRegen.
Even if the components are connected to the same mains power service… the distance between outlets/plugs will create a differential in ground potentials that will create a pathway for noise to migrate into the component power topologies… this is the advantage of using optical when placement of components are located some distance from the digital-audio signal source components…
In my case, the computers and the audio gear are located in the same listening room. There’s a distance between them, and they are connected to different mural outlets, but they share the same power service. It would be difficult for me to change that.
Then technically the optical isolation would only be beneficial in isolating the noise from the computer… I’m presuming all the power is distributed from one outlet on the wall…
The power is distributed by two power outlets of the wall, because I need two power strips for all the audio devices. These power outlets are dedicated only for the audio gear.
For the computers, and other devices, I use other power outlets of the walls.
The power-strips should be daisy-chained from a single outlet on the wall… there is no guarantee that the two outlets are on the same circuit, unless you know for sure that they are…
They are on the same circuit. They are on the same wall with a distance of about 2 meters.
Well just because they are on the same wall does not guarantee they are on the same circuit…
Do you know how can I check that?
Flip the breaker, Use a DVOM to check for resistance on the ground circuit ( there won’t be any)
Do not daisy chain power strips please, it’s just a really bad idea
Mr Fluke doesn’t lie
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Yes, daisy-chain the strips from a common power outlet… this preserves the common ground reference path…
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I can do that with the two World Matrix, but I was afraid to power everything on the same wall outlet.
Totally not recommended, fire hazard potentially. Piss poor advice
You will see this explicitly spelled out in the product instructions
Ground potential imbalance on same circuit that is already daisy chained in the wall, cmon you’re being nonsensical. I’ll wager you a donut that the ohms between the two wall outlets is completely negligible.
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NO… connecting components on different ground paths is the danger… I’ve seen modems and routers go up in smoke when not on common circuit grounds… You are flat wrong here…