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Flashman

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  1. Last week, basically on the strength of the spot-on review by @austinpop, I decided to go the fiber-optical route with my eR. I know I paid more by going full-bore Sonore (opticalModule w/included transceiver, extra transceiver for the eR, and their branded fiber-optical cable) vs. assembling a more generic system but, frankly, I didn't want to experiment. Perhaps more to the point, I felt the ground-up development of the opticalModule would give me better SQ (a leap of faith but also based on some reviews). Hats off to @JohnSwenson, @vortecjr and the rest of the Sonore team for creating an easy path for fiber-optical adoption, especially as they also recommend alternatives to Sonore that fit within their recommended ecosystem. My path: Router>Ethernet cable>opticalModule-in>fiber-optical cable-out>etherREGEN-in to "A" side fiber-optical cage. In addition, on the "A" side, I have an Ethernet cable connecting my Roon Nucleus. On the "B" side, I connect by Ethernet cable to my Devialet Expert 220 Pro. I have a SOtM dCBL Cat 7 Ethernet cable connecting my Nucleus and a DH Labs Reunion Ethernet cable tethered to my Devialet. I make no claims about my Ethernet cabling. I am powering my devices with a three-way Keces P8 LPS (19V/Nucleus, 12V/etherREGEN, and, via the USB 5V output, the opticalModule). Cut to the chase: I'm really glad I made the change. Was it a night-and-day difference vs. pure Ethernet cabling? Not quite. Did it enhance my listening pleasure? Absolutely. I am terrible at describing differences but it's clear that the fiber-optical route gives a better coherence to the sound stage and I have significantly more "a-ha" moments than I did previously. What's more, when one's spouse says the system is playing better than ever, without knowing about the change, one can only smile appreciatively. One unexpected benefit: albums via Roon now load much more quickly and access from one album to another happens at light speed. I admit to being a bit confused as to why this should happen, as the speed of my network did not increase by adding fiber-optical. On the other hand, the change to fiber-optical is clearly increasing the through-put to the Roon Nucleus. Go figure.
  2. I believe this is a multi-rail linear PSU, which does not have a shared ground. So, yes, you should ground the eR.
  3. I received my Sonore package yesterday (oM, extra transceiver to connect to etherREGEN and 1M Corning glass fiber) and installed it in my system. It was dead simple and I was up and running in 5 minutes. (I also received a short Ethernet cable but don't know why; I guess maybe to connect the router to the oM.) By the way, I am powering the oM with the USB output of my Keces P8 LPS. It's rated at [email protected] Works great. First impressions were quite good. That's all I will say until I do further listening. One surprise: Roon albums now load much more quickly. Don't know why that would be the case as the speed of my system has not increased. I rather doubt I will be testing different SFPs and fiber cables, as the sound is quite good as is. I guess with further burn-in I will like it even more. Hat's off to Sonore for taking the guesswork out of the equation. Yes, it was a bit more expensive than going a generic route but given the overall cost of my system, it was a pittance.
  4. Well said. Let's hope some people chime in.
  5. Keep us posted on your journey. I have a 30-day return on the Sonore stuff so I could easily swap out the modules and the fiber if there were reports of better SQ with a different approach.
  6. This optical area can be a rabbit hole! After a little research on what to use with my etherREGEN, I decided to go the Sonore route with the oM, an additional transceiver (one comes bundled with the oM) and their Corning 1M fiber. I paid more than going a generic route but I thought it was probably more prudent not to experiment. In my research of single- vs. multimode-fiber, I found this: "Multimode fiber has a relatively large light carrying core, usually 62.5 microns or larger in diameter. It is usually used for short distance transmissions with LED based fiber optic equipment. Single-mode fiber has a small light carrying core of 8 to 10 microns in diameter. It is normally used for long distance transmissions with laser diode based fiber optic transmission equipment." I note that Sonore uses multimode fiber, which comports with the above, as it's typically used over a short distance. Didn't I read somewhere that single mode fiber over short distances could overload the circuit, thus the reason for attenuators? I could be quite wrong but why go the single mode route with attenuation when Sonore provides some simple direction? Just my two cents...
  7. I appreciate your quick and helpful responses. I have a back-up power supply should the Keces solution be inadequate.
  8. Excellent. I will try the Keces to power it. As an aside, how would I know in operation if it required more headroom?
  9. Could I power the opticalModule with a [email protected] amp output? I have this ability from my Keces P8 LPS, which has a USB output with this spec. I had read that [email protected] amp output is the minimum power requirement, so I am thinking this will work...
  10. I’ve been using a dual-LPS Keces P8 with one side feeding a Roon Nucleus with 19V and the other side feeding the eR with 12V (drawing .8 amps). Works well. Never tried the stock SPS so I can’t comment on differences. Also, as the Keces P8 has a floating power design, I’ve grounded the eR per the manual.
  11. Agree with you on Kari Bremnes. As an example, listen to the first track "Lover in Berlin" on the "Norwegian Mood" album.
  12. Seems like a preview of the NAD Masters M33, which will feature the first mass-market implementation of Purifi amplification and built-in DiracLive.
  13. @Blake If the table you post is credible, it seems that the last four products are the problem areas. For instance, I paid for a Geek Source many years ago and there is no plan of which I am aware to fulfill it. Something is dreadfully wrong when a product (Vi Tube Dac) goes into production in February 2016 and only have 13.5 percent have been shipped to date. As for the Geek Source, how is that they started shipping in September 2017 but there is no evidence of any products being delivered more than two years later? As Shakespeare said, "something is rotten in the state of Denmark."
  14. Below is a link to the first pro review (Stereo Times) that I’ve come across. It’s just a summary but it’s quite powerful. You’ll have to cursor down to see the review. http://v2.stereotimes.com/post/most-wanted-components-of-the-decade-digital
  15. I have a Keces P8 linear power supply, which has dual-power capability. One side is powering my Roon Nucleus (19V) and I'll use the other side (12V, drawing only the amperage needed) to power the ER. (The P8 is considered to have a "floating" ground, thus requiring the ER to be grounded should I use it.) As noted, I will use the 12V setting (recommended for ER with an LPS) and to use a rather simple and inexpensive ground cord called "Earth Ground." There is only one conductor -- earth ground -- connected to the "ground" (round prong) on the plug. The "hot" and "neutral" are not connected to anything; they are only there to help hold the plug into an outlet. It's 8-feet long. There is no "end" on the ground cord conductor, so I will just strip the cable and affix the 16-gauge copper to the ER ground screw. Should work just fine for about $9.
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