I heard the Adot with/without the Plixir at a Signals Melco demo, and it did improve the SQ, lower noise floor and more musical.
As for switches i use an Innuos Phoenixnet and Uptone etheregen……plenty out there at various price points.
I do not use adot devices, but two UMC-GA1F2T units (tuned by Gert Volk)
They do the same as the adots, but you can use different optical modules (they are plug-in here)
I played with different PSUs, just out of curiosity → well, technically I cant explain what happened but I trust my ears and have to say potentially there is a good chance to get better sound via better PSUs.
I got much better sound with an ifi wallplug on one and a bigger linear power supply on the other.
…and I mean much better, so imho its well worth a try.
btw I like the netgear. last year I tried Melco s100 with/out adot against netgear gs108 and aqvox with/out adot.
Best for money was aqvox (short ahead of netgear) with adot!
although Melco was better overall in Hifi terms - but not in „flow“ or „musicality“.
Best for now is aqvox with tuned UMCs.
Hope that helps
I have tried different power supplies, for my ex Unitserve, Netgear gs 105 switch, then Etheregen. For me the difference was each time very noticeable, even transformative. But the linear ps has to be of high quality to really see the difference. If not, it will be subtle, as for example the Israeli one on the Unitserve or the Uptone lps on the Etheregen.
The ones I can recommend easily : Uptone JS1 ( can power 2 items), the Hdplex 300, the top MCRU, and the Farad.
Sean Jacobs SR4 ( from many reviews) and the Sean Jacobs or Plixir ( see the search part of the forum). A good dc cable makes also a difference.
You seem to have a whole bunch of network hardware and cables located very close to your HiFi. Put it as far away as possible, preferably in a different room and on a different mains circuit if you can.
Thanks James, I don’t fully understand. The two adot boxes are powered by the Plixir - is this not optimum and if not what is needed to be optimum - apologies for being a bit of a thicky but my brain goes to mush on all things technical….
It does work in this configuration……as i heard in a demo. What James is referring to it the “y” connection connects the in and out with the potential same noise source.
My home demo with this “y” connection ended in a no buy……probably unrelated.
James is right, but it is extremely hard to have them electrically decoupled in the first place. Just putting their switch mode power supplies in an outlet have them electrically coupled. Unless you have one Adot in another house and run a long glasfiber cable in between (which you can).
In practical terms, having them both fed by an Elixir gives a much cleaner signal. The benefit of having a common ground plane by hooking them both up to the same PS doesn’t apply here, since the ADOTs are connected by glass fiber and not an electrical ethernet cable.
Having said all this. The Electrical Elephant in the room is the quality of the internals of the Adot. Nothing I’ve read so far convinces me they are re-engineerd boxes, but rather common glasfiber - to - ethernet converters with a new logo slapped on. These are electrically noisy! So, you go to all the trouble to put glasfiber in between to isolate the streamer, to inject electrical noise again by the last fiber converter in front of the streamer. Having that one hooked up to the Plixir is probably wise.