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+--- Thread: "Audiophile Grade" Ethernet Switches - The new generation (/Thread-Audiophile-Grade-Ethernet-Switches-The-new-generation)
RE: "Audiophile Grade" Ethernet Switches - The new generation - GuillaumeB - 16-Jun-2019
Hi all, the Telegärtner M12 Gold has been here for a few days.
Overall very impressive indeed although I am yet to conduct proper A/B testing with the SOtM. I hope to have a bit of time over the next few days and will report back.
What I should point out thus far however is that I have now settled with one media converter between router and first switch (SOtM). For some reason with 2 media converters (creating the bridge) and feeding my Draytek switch which in turn fed the SOtM (x2) via a 20M run of AQ Carbon ethernet cable resulted in a sound that whilst initially quite impressive I found a little too airy and not focussed enough, resulting in reduced enjoyment and some head scratching on my part.
Now I don't know much about these things but I wondered if in that setup the bridge wasn't "robbing Peter to pay Paul".
In the current setup I have therefore made 2 big changes: one is replacing the Draytek with one of the SOtM switches, and removing one media converter from the equation. As a result I can't be sure why I prefer what I now hear, there are just too many variables. But this is clearly better than having an optical bridge feeding into the Draytek which in turn feeds 2 bridged SOtMs.
To properly A/B the Telegärtner and SOtM switches I will need to reinsert the Draytek, remove the bridge.... essentially simplify everything back down.
Guillaume
RE: "Audiophile Grade" Ethernet Switches - The new generation - Confused - 16-Jun-2019
(16-Jun-2019, 14:20)GuillaumeB Wrote: Hi all, the Telegärtner M12 Gold has been here for a few days.I am a little puzzled as to why you want to run two media converters to create a "bridge", is it not the case that both the Draytek and SOtM switches have SFP ports? So I would have thought it best to convert to fibre once, and then use the SFP in one of the switches. Maybe you are just experimenting? It looks like you are getting interesting results in any case.
Overall very impressive indeed although I am yet to conduct proper A/B testing with the SOtM. I hope to have a bit of time over the next few days and will report back.
What I should point out thus far however is that I have now settled with one media converter between router and first switch (SOtM). For some reason with 2 media converters (creating the bridge) and feeding my Draytek switch which in turn fed the SOtM (x2) via a 20M run of AQ Carbon ethernet cable resulted in a sound that whilst initially quite impressive I found a little too airy and not focussed enough, resulting in reduced enjoyment and some head scratching on my part.
Now I don't know much about these things but I wondered if in that setup the bridge wasn't "robbing Peter to pay Paul".
In the current setup I have therefore made 2 big changes: one is replacing the Draytek with one of the SOtM switches, and removing one media converter from the equation. As a result I can't be sure why I prefer what I now hear, there are just too many variables. But this is clearly better than having an optical bridge feeding into the Draytek which in turn feeds 2 bridged SOtMs.
To properly A/B the Telegärtner and SOtM switches I will need to reinsert the Draytek, remove the bridge.... essentially simplify everything back down.
Guillaume
Whilst on the subject of FMC's, have you looked at the new Sonore opticalModule, it might be a nice choice for the "first change to fibre"?
https://www.sonore.us/opticalModule.html
RE: "Audiophile Grade" Ethernet Switches - The new generation - GuillaumeB - 16-Jun-2019
(16-Jun-2019, 16:03)Confused Wrote:(16-Jun-2019, 14:20)GuillaumeB Wrote: Hi all, the Telegärtner M12 Gold has been here for a few days.I am a little puzzled as to why you want to run two media converters to create a "bridge", is it not the case that both the Draytek and SOtM switches have SFP ports? So I would have thought it best to convert to fibre once, and then use the SFP in one of the switches. Maybe you are just experimenting? It looks like you are getting interesting results in any case.
Overall very impressive indeed although I am yet to conduct proper A/B testing with the SOtM. I hope to have a bit of time over the next few days and will report back.
What I should point out thus far however is that I have now settled with one media converter between router and first switch (SOtM). For some reason with 2 media converters (creating the bridge) and feeding my Draytek switch which in turn fed the SOtM (x2) via a 20M run of AQ Carbon ethernet cable resulted in a sound that whilst initially quite impressive I found a little too airy and not focussed enough, resulting in reduced enjoyment and some head scratching on my part.
Now I don't know much about these things but I wondered if in that setup the bridge wasn't "robbing Peter to pay Paul".
In the current setup I have therefore made 2 big changes: one is replacing the Draytek with one of the SOtM switches, and removing one media converter from the equation. As a result I can't be sure why I prefer what I now hear, there are just too many variables. But this is clearly better than having an optical bridge feeding into the Draytek which in turn feeds 2 bridged SOtMs.
To properly A/B the Telegärtner and SOtM switches I will need to reinsert the Draytek, remove the bridge.... essentially simplify everything back down.
Guillaume
Whilst on the subject of FMC's, have you looked at the new Sonore opticalModule, it might be a nice choice for the "first change to fibre"?
https://www.sonore.us/opticalModule.html
The Draytek has no SFP ports. Yes the Sonore looks interesting!
Guillaume
RE: "Audiophile Grade" Ethernet Switches - The new generation - ssfas - 18-Jun-2019
Yesterday I had an unresolved discussion with the Sonore guy on Roon, where he was promoting his optical set-up. An optical based streaming system is a very good idea for computer types, and he said he is making an optical output module to be fitted inside SoniucOrbiter servers. My interest was only focused on the merits, if any, of his media converter against the mass market ones in a bridge set-up. Is there more to be gained from the converter or the power supplying it? I understood converters were very simple devices. My bridge is between router and Innuos server, which then feeds Devialet. The bridge is currently a 240v Cisco 3560 switch feeding a TPLink powered by a SOTM 9v battery. I've just spent £20 on another TPLink converter to replace the Cisco. The SOTM 9v will power both, so only needed £5 for a 9v splitter. Someone else can spend £270 to try the Sonore converter. Sonore haven't yet re-engineered the SFP module, they sell TPLink ones on their site.
Main recent change is whole system powered by Shunyata from a UK6.
RE: "Audiophile Grade" Ethernet Switches - The new generation - Antoine - 18-Jun-2019
@ssfas see this post for the views of the creator of the OpticalModule.
https://audiophilestyle.com/forums/topic/55217-sonore-opticalrendu/?do=findComment&comment=963599
RE: "Audiophile Grade" Ethernet Switches - The new generation - baconbrain - 18-Jun-2019
(18-Jun-2019, 12:37)Antoine Wrote: @ssfas see this post for the views of the creator of the OpticalModule.
https://audiophilestyle.com/forums/topic/55217-sonore-opticalrendu/?do=findComment&comment=963599
I always appreciate John‘s posts.
RE: "Audiophile Grade" Ethernet Switches - The new generation - Antoine - 19-Jun-2019
(18-Jun-2019, 13:42)baconbrain Wrote:(18-Jun-2019, 12:37)Antoine Wrote: @ssfas see this post for the views of the creator of the OpticalModule.
https://audiophilestyle.com/forums/topic/55217-sonore-opticalrendu/?do=findComment&comment=963599
I always appreciate John‘s posts.
Me too! They’re very informative and often make a lot of sense.
RE: "Audiophile Grade" Ethernet Switches - The new generation - Confused - 19-Jun-2019
(19-Jun-2019, 10:18)Antoine Wrote:(18-Jun-2019, 13:42)baconbrain Wrote:(18-Jun-2019, 12:37)Antoine Wrote: @ssfas see this post for the views of the creator of the OpticalModule.
https://audiophilestyle.com/forums/topic/55217-sonore-opticalrendu/?do=findComment&comment=963599
I always appreciate John‘s posts.
Me too! They’re very informative and often make a lot of sense.
It's another JS +1 from me. The link above is for the same post that I linked to in the "clocking" thread. I think it good that Antoine has provided a link here too, it is very much on topic in this thread. In fact, I think it offers a possible explanation for Guillaume's "cognitive dissonance" experience when adding FMC's and an optical bridge. Impossible to prove of course, but it does seem possible to me.
RE: "Audiophile Grade" Ethernet Switches - The new generation - ogs - 19-Jun-2019
I've followed John's findings and posts since the slimdevices time. He has always been very interesting to read, but he is even better now when audio design is his full time occupation!
RE: "Audiophile Grade" Ethernet Switches - The new generation - ssfas - 19-Jun-2019
(19-Jun-2019, 12:49)Confused Wrote:Thanks. I read that. I think I’ve got power sorted. Both my tplink converters are powered by a single battery, so mains noise is not an issue. The Zen mk3 server has lps and Shunyata, next stop is Devialet.(19-Jun-2019, 10:18)Antoine Wrote:(18-Jun-2019, 13:42)baconbrain Wrote: I always appreciate John‘s posts.
Me too! They’re very informative and often make a lot of sense.
It's another JS +1 from me. The link above is for the same post that I linked to in the "clocking" thread. I think it good that Antoine has provided a link here too, it is very much on topic in this thread. In fact, I think it offers a possible explanation for Guillaume's "cognitive dissonance" experience when adding FMC's and an optical bridge. Impossible to prove of course, but it does seem possible to me.
So the linked article talks about noise from poor reclocking. When arguing with the Sonore guy elsewhere he said, and I quote:
You keep talking about “reclocking”. Let’s be clear we are not reclocking anything. These devices have oscillators in them because they are required for proper operation. All the gear you own has oscillators in them for one reason or another, but don’t intermingle them. A DAC might reclock after the USB receiver or Ethernet receiver to reduce their inherent jitter even though both processes might be asynchronous. The audio oscillators in your DAC are different than the data oscillators in network gear and computers and perform different tasks all together. The femto Aries appears to have femto oscillators on the audio outputs. This has nothing to do with this conversation.
The reason for systemOptique is simply to pair compatible network gear with our hardware. With so much network diversity on the market we needed to assure compatibility for our customers. Our optical products each come with an SFP module. The optical modules you are referring to are extra units for those who need them. There is no irony in any of this.
So this designer John S is going on about reclocking and the owner says there is no reclocking. I’m confused!
Current boxes - SOTM powering two tplink converters.