cat6man Posted June 13, 2019 Share Posted June 13, 2019 Well, finally back from a 2 week trip and then took a day to begin to get over jet lag (i.e. I couldn't be trusted around electricity or sharp objects). The oR was in my system and burning in for the 2 weeks and my recollection was that it sounded good, better than the old ultraRendu but probably needed to be burned in. After 2 weeks, my opinion didn't change very much......hmmmmmm Wednesday morning I unpacked the oM, set it up with an lps-1.2 and let it burn in for a day while I listened to the oR based system (also with an lps-1.2) and waited for the jetlag fog to begin to lift. Today, I spent an hour or so listening to the oR in my system, then went to the basement and put the oM into the feed. Holy (insert your own adjective here)! I listened first (5 minutes after listening to it with oR alone) to Jennifer Warnes "Ballad of the Runaway Horse" and it was transformed, huge bass, much better depth and great micro-detail to the voice, just a no-brainer and no need to go back and forth for comparisons. Clearly the uplink router crap/noise was really significant in my system.[YMMV] The combination of the oM and the oR in my system, both with good power, is way beyond where I was with the uR. My network is fairly heavy in the house. I have a 24 port 1G Netgear router, as well as a 6 port 10G Netgear router. I had been using an SFP off of the 10G router to connect to the oR via 50ft of single mode fiber (I bought a pair of SFP and am not using the Sonore provided SFP). I am currently running cat6 from the 10G router to the oM. I had initially thought that the oR alone was supposed to be sufficient, but then I read here on the forum that some folks reported improvements with both the oR and oM, particularly if the router was noisy---so I took a shot and ordered an oM while halfway around the world (and it was waiting for me when I got back). So, still in a bit of fog but very very happy with the sound of my system. Great job guys! jventer 1 Link to comment
cat6man Posted June 14, 2019 Share Posted June 14, 2019 16 hours ago, barrows said: @cat6man, great to hear that you had such a nice improvement. Here, adding the oM to my set up with the Signature Rendu SEoptical only resulted in a small increase in what I would call "purity". Previously I was using a cheap FMC, but powered it with a very, very good ultra low noise ultra low impedance linear supply. It is clear now from reports, that everyone's results will vary a bit, due to Network configurations. @barrows how about downgrading your system for a quick test? can you put the SFP directly into your router and remove your FMC/oM? i'm curious if you'd also notice a big difference basically wondering if SFP in router might be a "don't go down that road if you don't have to" recommendation Link to comment
Popular Post cat6man Posted July 15, 2019 Popular Post Share Posted July 15, 2019 9 hours ago, barrows said: @John769, It is on my radar to test single mode fiber at some point, but I am too busy to try it now. If anyone is running single mode fiber cabling/SFPs with the opticalModule and/or optical/Rendu I would love to hear about it and your results. As long as one uses 1 Gb modules it should work, but we at Sonore cannot recommend such until it is confirmed to work. my system (as reported in other posts) has been single mode fiber since I got the oR and works fine (oM==>oR) before i got the oM, i ran single mode from my netgear router to the oR, then moved SFP around when I got the oM. both setups worked fine. barrows and John769 1 1 Link to comment
cat6man Posted November 25, 2019 Share Posted November 25, 2019 has anyone tried the oM in their video systems, i.e. feeding a video box like the nvidia shield? Link to comment
Popular Post cat6man Posted June 19, 2020 Popular Post Share Posted June 19, 2020 just wanted to give some feedback on my use of the oM outside the circle of audio devices. originally, all my networked devices were randomly attached to either the fios router, a 24 port gigabit netgear switch or a 4 port 10 gigabit netgear switch. the audio path logic is (ignoring all the switches) audiolinux/HQP/NUCserver (hdplex200) ==> etherRegen (lps 1.2) ==> opticalRendu/NAA (sr4) my first step was to isolate the audio components so i added a ubiquity edgerouterX sfp (powered by lps 1.2) with 3 copper connections to the server/NUC, etherRegen and fios router (for streaming qobuz) isolating the audio devices from the rest of the home network activity made a noticeable improvement in SQ as a 2nd step, i inserted an oM between the fios router and the SFP input on the edgerouter.............and the improvement was as least as significant as the first step, and this was without an LPS powering the oM. replacing that last cat6 cable with a Sonore opticalModule and fiber gives additional galvanic isolation from the fios router and the improvement is huge.............it seems there is no end to the amount of grunge/noise we need to remove. i had not expected this big an improvement......bigger and more continuous soundstage, deeper decays, more detail without etch. note that this is with a wallwart switching power supply for the opticalModule. i'll upgrade to a LPS for the oM when my hdplex300 get here in a couple of weeks. so if you haven't tried it, consider 1) isolating your audio switching devices from the rest of your network activity and 2) use a oM to galvanically isolate your segregated audio from the other network activity. really big gains for really little money. thuandb, Superdad and PYP 2 1 Link to comment
cat6man Posted June 20, 2020 Share Posted June 20, 2020 replaced 5v wall wart switching supply with 12v wall wart switching supply into a DXP-1a5DSC (pre-reg 10v, output 8v) and another very tangible improvement, particularly in jump factor on vocals where the dynamic range of silence to vocal is startling............and this is not even in the streaming audio path, just between the fios router and the edgerouterX. i already have galvanic isolation to the DAC (with the etherRegen ==> opticalRendu) any theories on why this is helping so much? (not that i'm complaining) ...........other than "everything matters" Link to comment
cat6man Posted June 21, 2020 Share Posted June 21, 2020 13 hours ago, vortecjr said: It would be impracticable to show a difference from this at the output the DAC. ok............how about a simpler measurement? what about fiber vs. copper in the streaming path to the DAC? let's run copper or an oM to the Rendu streamer...........what would you measure to show the benefit of galvanic isolation? Link to comment
cat6man Posted June 21, 2020 Share Posted June 21, 2020 1 hour ago, vortecjr said: John or Alex have posted measurements with cable Ethernet showing the affect of noise from the power supply on an upstream network device. The whole shunting of the DC negative to AC ground was part of the proposed fix. This type of noise transmission is simply not possible over fiber optic networking. thanks jesus. i (vaguely) remember this and, in fact, modified two of my switching power supplies accordingly. anyone remember the link(s)? Link to comment
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