I knew there was a reply coming.
Enough said.
(Please accept my apologies, and my error in sharing my prior positive experiences and comments with others in the community.
I now realize, there is no need to bother, I guess it is trueâŚthat there is no need for any audio upgrades and we should be happy with the basic cables and off the shelf ethernet accessories.
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I unpacked my new toys today. The Trendnet Converter plus two generic SwissGBIC SFP Modules plus a 2m multimode OM3 cable. Installation was a breeze.
Whether it really sounds better is difficult to say. The sound quality was very good before already. But at least I donât have to wonder anymore whether I am missing something.
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Now, sit back, relax, and enjoy 
Welcome to the club.
Here is mine courtesy of some helpful feedback from @Anupc
The bottom Cisco has all of the household devices while the top Cisco is dedicated exclusively to the Rossini. Blue Jeans CAT6 un shielded as well.
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Hey GreggâŚthe top one is crooked.
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next time you are on the ârightâ coast you can come over and straighten it
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Melco S100 improved streaming a lot in my system (Rossini player), a plixir BDC power supply with an Ansuz C1 powercord to feed the S100 are the âicing on the cakeâ, playing CDâs through the Rossini was always the best performance in my system, but streaming (qobuz) is now very close (if not better with well recorded high res recordings)
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I just upgraded my switch to Ansuz D2 Power Switch, from a Taiwan switch product (with LPS)⌠no regret, huge upgrade, and the sound is so âanalogueâ nowâŚ
Paul,
how do you run the Ansuz?
I just gave back my Ansuz since itâs blocking upnp (couldnât see any upnp attached NAS serever with Rossini) and it works only with roon (roon uses different protocol that the switch isnât blocking)!
After some calls with Ansuz, they confirmed that this is a hw problem that canât be fixed since all of their switches are using same hw engine.
Hi⌠Thatâs strange. My Ansuz setup works well with my NAS (on QNAP) and Roon⌠I like the sound of Ansuz so muchâŚ
May I know which NAS server are you using?
It worked with roon but not native (Mosaic app) with upnp services. I tried melco, qnap, synology, innuos - even a mac with twonky wasnât detected. Do you get upnp native access via Mosaic app?
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that must be very frustrating, sorry for that. you even tried on melco & innuos - those âmade for hifiââŚ
for my setup, it works well for NAS detection with both Roon and Mosaic. I prefer running on Roon, due to the user friendliness.
Thanks Paul,
this is really strange- I tried two different Ansuz switches and both didnât work.
I had everything (dCS Rossini, Melco, roon server and wlan access) connected to Ansuz. I changed cables, ports etc. without a result. Bought finally Innuos PhoenixNet âŚ
This confirms an experience I had. Plugging the Rossini into a switch in the same room resulted in very very harsh sound. Plugging the Rossini into a port that led to a switch on the other side of the house solved the problem. Itâs possible the problem could simply have been with the local switch itself. All I can say is the difference was not at all subtle.
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Paul,
please could you describe you cabeling (what is connected to whatâŚ) please?
Thanks!
Hi⌠I am using Netgear Orbi for wifi and computer connections.
for audio/ home theatre, all devices are connected to Ansuz D2 powerswitch.
Netgear Orbi > Ansuz D2 = AIM NA7
Ansuz > dCS = Ansuz D2
QNAP NAS > Ansus = Siltech Royal Signature Crown
Apple TV, Panasonic BD Player, and LG TV = tailored Viablue EP-7S with Telegartner head
With the Ansuz, not only the audio quality is enhanced, the Netflix, Disney+ and Youtube also being enhanced (mainly the audio, not video).
Many thanks Paul!
Basically, I run same setup without the Qnap (using Melco) and cables.
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Melco is great! enjoy listeningâŚ
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Apologies, but even as a relative newbie I need to take issue here. Nicely and supportively, of course!
You say âLogically, ethernet switches, ethernet cables, power cords, even clock cables shouldnât make an audible difference but Iâve personally heard that they all do.â
This not actually logical at all. It comes down to noise (RFI/EMI) and shielding from same and if you/the manufacturer address this correctly then there is a good chance you will hear a difference:
Ethernet switch: any switch will break the noise âchainâ and stop noise picked up on your ethernet cable from reaching your equipment. Itâs true, the boards used inside most âaudiophileâ switches are stock boards you can find in many a budget switch. They often have a super-accurate clock added but if you know how ethernet works, this will have zero effect on sound quality unless, theoeretically, it replaces a noisy stock clock. The key to superior performance is shielding: instead of using a plastic case or an aluminium case with vent holes in it, wrap it in milled metal and it will reject noise far more effectively.
Ethernet cables: I think others may have pointed out that you should use CAT cables not proprietary âethernetâ cables sold by boutique manufacturers as these often have metal rather than plastic plugs and they stop the galvanic isolation in a typical switch board from doing its job. The noise they let through can initially be perceived as more detail but it isnât.
Power cables: screen them to keep the noise inside them and thereby away from sensitive signal cables.
Clock cables: no idea or experience but Iâd suggest if any difference is heard then itâs noise-related.
I donât personally buy any of the guff which suggests there is anything magical going on in the digital sphere, at any level of the ethernet protocol, and neither should anyone else. Itâs analogue noise, pure and simple; the clever bit is how you reduce this noise to its lowest possible level.
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