Thanks Simon for correcting me its all rather too technical for me so i clutch at simple phrases. Interesting how these little expensive tweaks work or not depending on the system they are in and our own ears.
The really nice upgrade was paying the electrician £120 for cabling, henley, box and consumer unit, i paid for the socket/faceplate. Great value wish i had done it years ago.
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Gazza I was no way wanting to correct you as that would be far too presumptuous of me 
However just flagging that some people cross the threads and mix things up in describing this - and to be fair some consumer product marketing aimed at Audiophiles doesn’t help either…
I am still waiting for an audiophile artisan company to make/sell a genuine ethernet noise reducing solution - rather than enthusiasts needing to integrate their own products… perhaps no one does as it is too much at the diminishing return end of the scale, and good old fashioned common mode noise and serial phase noise reduction whether in fibre or twisted pair is relatively easy to do and relatively low cost to manufacturer and can yield a more prominent change in audio - depending on what you have come from.
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I remember your discussion with Steve Sells when the Naim forum visited HQ. It seems a side of mainstream hifi that is in its infancy……and by default lets others lead or play on their patch. It will be interesting to see if Naim do sfp on any new products like Linn.
Totally agree with this…the ethernet side of things…could do with some sort of guidence…
Yes we did discuss the use of ethernet transceivers several years back with Naim when really the only performance choice was ethernet - the view was it could be interesting but probably too much unnecessary complexity for most and liable to cause unnecessary confusion and clamour for guides etc if you remember.
I did point out of course transceivers (SFPs/SFP+s) can either be twisted pair or fibre - so they gave the consumer choice but I conceded the point of unnecessary complexity.
To be honest now however this area is probably rather old hat/legacy - the world has moved on from those discussions years ago; the future is with the new wifi transport methods/protocols - especially with 802.11ax and its various controls for managing flows, and for the consumer is more plug and play with respect to higher grade performance compared to older wifi and provides the benefits of may exotica tweaks that are sold for ethernet for audiophiles
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Gazza
Can i ask how exactly you got on with the 2 adot’s and how exactly you had them in the system.
As i have been thinking about running one and using the fiber out from my cisco switch, then fiber to the hifi about 5 meters away, then the adot and a small lenght of cable into my melco.
Cheers dunc
I have a cat6 cable that runs from router around the outside of the house in conduit and then into the living room through an airbrick. I was/am using a Plixir psu to power an etheregen then AQ Vodka to Innuos Phoenixnet switch then AQ Vodka to ND555.
I removed the Etheregen and used a 5v Plixir to power two ADOT modules, one taking the cat6 feed and then a run of single mode optical cable to the other ADOT module…….then AQ Vodka ethernet to Phoenix etc. I mention single mode fibre as this is new out and does sound better to multimode cables. In this configuration it was hard to tell any difference between ER switch or ADOT……both about the same price with a Plixir psu.
Where i could see some benefit was using one ADOT module taking the cat6 feed and then fibre optic to the sfp module of the ER switch……better note decay. However its a fair whack of money, more boxes for marginal benefit. I don’t sit and listen normally straining to hear differences.
So in summary if it had been available a couple of years ago when i bought the ER, the ADOT might have been my choice. The cable is relatively cheap for long runs…….though be warned it cannot be re terminated at each end.
@james_n has the ADOT modules in his system and may have more useful advice.
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Cheers
Its great you have tested pretty thoroughly…now just sit back and enjoy the music knowing that…at least the dac is probably getting as good as you can sensibly get…
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Hi Dunc,
As Gary mentions, I use the ADOT MC01 kit. After trying out a few different combinations when I changed from a Naim to Linn front end, including fibre straight into my KDSM (using both the ADOT MC01 or the 2960 as the media converter), I settled on the setup I use now.
The 2960 is still used as my main switch, supporting a Roon Nucleus, Sonos system and a Mac mini / NAS (only used for ripping and back ups). Fibre from the 2960 to the ADOT media converter and then 20m or so of CAT5e to the PhoenixNET in my lounge.
I’d suggest if you try this, borrow a decent supply like the Plixir option (I use an Uptone PS) on the ADOT that has the copper connection to your DCS and don’t use shielded Ethernet cable on this link.
It’s worth noting that the ADOT supplied SFP won’t work in the 2960 (without delving into the switch config) so you’ll either need a genuine Cisco module or something like this StarTech SFP which works fine.
That is just about what i want to try, cheers.
You have the same cisco as me only mine is under the stairs and has lots plugged into it, so hopping that a 5 meter run of fiber to the hifi. Then the adot and small lenght into the melco N10 will bring benefits.
Just to add i have a power supply from my melco n100 days that might work, as also used it on the EtherRegen and now it powers my melco d100 when needed, obviously i will have to check if its ok.
The melco d100 needs 12 volts……the ADOT is 5 volts. Plixir do a combined 5 and 12 volt……but £850.
Bugger
You could rig up a 5v battery pack…which would be a really nice supply…
Can you not loan a supply with the ADOT ? The basic SMPS supplied will get you going but try and borrow a decent supply to go with it if you can.
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I was supplied with a single output Plixir, but the cable was split into two……powering both ADOT modules. That would put the Plixir at £500for a single rail, the dual rail ones are £850.
That configuration always seemed a bit of a strange one with the Y output cable feeding both media converters. You isolate them electrically with the fibre, then couple them via the common power supply.
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It may be its downfall……in my system?
Possibly Gary, but then you have the EtherRegen which is already very effective.
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