Bricoldur du moment: Cisco Meraki MS220-8P et cables DC

[Nicoben]

Allez un retour que je trouve très clair de chez nos amis outre atlantique entre l’etherregen et l’aqvox(pas SE mais je doute que le passage en SE comble l’écart) sur du matériel à l’expressivité difficile à mettre en doute:

In the month of March (and when I was thinking of updating my AQVox to the SE version), it will be two years since Alex made the announcement that they were working on a new Switch designed entirely from zero, and based on the separation by means of a "pit" of the incoming RJ45 ports and the outgoing RJ45 port, in order to "totally" isolate the devices downstream from the EtherREGEN, from those that were upstream.  I liked what I read and in an act of faith (like so many of us) I decided to wait, which in the end has been almost two years.
 Unlike some installations that have been explained here, mine is really very simple:
 
 Router with LPS Kenneth Lau.
 AQ Cinnamon RJ45 cable
 AQVox Switch (EtherREGEN) with LPS Kenneth Lau
 Göbel RJ45 cable
 Melco N1ZH60-2
 Göbel USB cable
 Kassandra Reference MKll

 I have to say and this is important as you will see later, that all devices, except the Router (which is in the kitchen) are connected to a Shunyata Denali 6000T.
 I also have to say that I have powered EtherREGEN with its SMTP, with LPS 1.2 from Uptone and with LPS from Kenneth Lau.  And also that the only device Router that I have “upstream” of the ER, I have tested it with its Shunyata Alfa NR cable, with an Isotek Optimun cable and I have switched between the SR Blue fuse I had and the new SR Orange.  All these changes in order to check if the objective of total isolation through the pit had been met.
 My conclusions are as follows:
 1.- If you have a normal Switch or an AQVox, changing it to an ER produces an increase in the SQ?  The answer is a big YES, even if you use the Uptone SMTP and even better with a good LPS.  Which shows that that pit or ADIM as Uptone calls it, is doing a great job.
 2.- Does ADIM isolate “totally” both sides of the pit?  My answer is a big NO.  Absolutely all the changes made to the Router resulted in a change in the sound of the system.  This can be positive because it indicates that there is still room for improvement for the future.
 3.- Although my Kenneth Lau LPS has the floating output, and since I only have one entry occupied on the A side (the one that goes to the Router) in principle connecting the ground screw of the ER to the ground of the power grid  I should not improve the system's SQ.  As testing costs little, I took an Entreq Apollo Infinity cable that I had unused and connected the ER screw to a socket on the wall.  Immediately the sound changed, not necessarily better, let's say different.  Then I remembered that the Denali had a free socket and I connected the ground wire to it.  "Clinck" is as if all the pieces of the puzzle suddenly fit into place.  With this change, I was perplexed.  How did the sound change? (I'm a lousy descriptor):
Clarity, organic sound and reduction (even more) of digital stress.
 The violin masses of many orchestral recordings, which are my
 authentic "bête noir" sounded natural now, or at least much more natural, than I had ever heard.
Why unify the earth of the ER plate to that of the rest of the system, produces this effect ?, I have no idea, but in my system it is evident.
 Is it worth the ER?  Absolutely and for $ 650 it seems the biggest "bargain" in history.