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About ray-dude

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  1. Congratulations! To clarify, did you order it in February, or is this the February scheduled ship batch that is currently shipping? (I ordered one in March, with a target June ship date)
  2. Interesting....in my "stuck in traffic, thinking of all the things I could experiment with but will never have time to actually do", I was contemplating hacking the Squeezelite code to present two end points to Roon: one large buffer one and one regular one (basically a control path with the small buffer end point, and a bulk transfer path with the large buffer end point). Roon Core could then stream to both, but the bulk transfer path (connected to the DAC) would sync with the control path directly, and Roon could happily stay in sync with the control path (basically a proxy to maintain sync). Plan B would have been to have the control path end point process run on the server itself, and have the two end point processes stay in sync over the network (to further minimize network traffic to the actual end point connected to the DAC). Of course, the best answer would have been for Roon to actually fix the sync issues to large buffered end points, but alas, there dragons dwell. Thankfully for all of us, Željko is actually doing the work to make it work! I am very excited to hear the results and support his efforts! Thanks to you and Roy for the advocacy and pushing things forward!
  3. I have been assuming that the skipping and freezing we hear going from Roon core to large buffer Squeezelite was related to Roon and how it interacts with SL (Roon has to jump through all sorts of hoops to do the multi-zone thing...I assumed this is what was messing up large buffer end points). Do you have a sense of what they needed to do to get Roon to play nice with a large buffer end point? Can't wait to hear the beast!
  4. I'm using these in my NUC7i7DNKE. I no longer have my NUC7CJYH, but I'm pretty sure I used these same antenna when I did (I replaced my NUC7CJYH with a second NUC7i7DNKE) I had these as well: https://www.amazon.com/gp/product/B01E29HV38 These for sure fit the NUC7CJYH, but less clean to have loose wire coming out of the Akasa case.
  5. I struggled a bit trying to find same when I moved my NUCs to Asaka cases. After a couple failed orders from Amazon, I ended up just searching for the WiFi card and ended up with these: https://smile.amazon.com/gp/product/B01E29566W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
  6. #31...1/2 way there! (4 months to 4 years to go
  7. Have you tried tightening the bolts on the unit? I've been reminded a couple times recently that the mechanical nature of the transformers is a big part of buzzing
  8. Interesting, using ethtool eno1 I just checked the ethernet speed on my 7i7 NUC endpoint (running AudioLinux) and I'm getting 10Mb/sec(!) That may explain why I've had some skipping issues with very high res files Time to figure out how to set or what is causing the low negotiated speed
  9. That's really the big question isn't it? Is the moat effective enough that you only want a single terminal device (end point) connected to the single port side, with everything upstream no longer mattering, or is there an advantage to have multiple devices on the "clean" side? Can't wait to hear real world experience with this topology!
  10. Now that I have a couple balanced isolation transformers in place, time to harden the setup against people hurting themselves by plugging things in that don't play nice with balanced power. My understanding from searches and this thread is that the best way to protect against the formally neutral line (now -60V) creating a short to ground is to have a ground fault interrupt breaker between the balanced isolation transformer and the things I'm plugging in. This is guess work, since I'm not a GFI expert. https://smile.amazon.com/gp/product/B00TQOF3FI/ My tentative plan is to get a couple of these, hack off the plug end, and hard wire them to the output of the BIT's (3 outlets per BIT) For those that have gone through this research and come up with a good solution, could you please share your findings and solution, or give feedback on the suitability of the generic GFI tap cord I linked to above? Thank you again to everyone here that has been so generous in sharing their experiences and expertise!
  11. A question for those that have played with a capacitor across the output terminals of their Topaz isolation transformers. One of my Topaz units has a large capacitor connected to the hot and neutral lines on the output (when I switched to balanced configuration, now connected to +-60V lines). Reading through the Topaz manual, it looks like these are there to minimize transverse-mode noise. I practice, how does transverse-mode noise manifest itself (if at all) in an audio system? Given the importance of the ground and voltage reference, common-mode noise reduction makes a huge amount of sense to me (which is why I have a couple of the Topaz IT's). I'm trying to get my head around transverse-mode noise, both in a conventional Hot-Neutral configuration (Neutral connected to ground at the breaker box, and at the output of the transformer), and in a balanced Hot-Hot (+-60V, center tapped ground) configuration. For those that have researched/played with this stuff, how important/impactful is transverse-mode noise reduction in an audio context? Is it worthwhile for me to be adding a large cap to the output of my other Topaz IT?
  12. Thank you, that’s great info! i did end up cracking open a 1604a last night and can confirm two wires in and two wires out (floating shield as expected) The interesting thing is the two point mounting scheme they use for the heavy transformer. One of the mounting brackets had been bent (presumably in transit). A little muscle action and the mechanical buzzing went way down. A reminder that these transformers definitely have a mechanical aspect to them.
  13. Confirmed that I got the same impact/benefit with my second Topaz isolation transformer (a 91018-31T this time) I also finally got around to using my KillAWatt to measure power factor. Coming in at 0.7 with the linear power supplies and class AB amps I have connected to the first unit. I'm out of hobby time this weekend, but on the list is to measure the PF going into the Topaz to see how well it is insulating the rest of my house from the heavy PF load from the amps and LPS I did have time for one other quick experiment. I just got some BK Precision 1604A isolation transformers to help isolate some smaller switching supplies. These buzz quite heavily. Naively, I would have thought that plugging them into the balanced output of the topaz would impact them as well, but the buzzing is the same whether plugged into balanced power or normal power. I just added cracking the case open to see how these guys are wired internally (does anyone have a wiring schematic for the 1604A's?)
  14. After checking (and double checking) that my downstream equipment would be happy with balanced power, I rewired my Topaz 91002-31 for balanced power (+-60V on hot/neutral output lines) and things are working great! As others have mentioned, all the buzz/clicking from my transformer has gone away. It is still warm (no longer hot) but pretty much silent (I have to lean in to ~10" to hear a very muted/quiet buzzing). It definitely seems like it is running cooler to the touch Hard to tell if it is a change in power quality or the elimination of the background buzz from the IT, but things are definitely sounding better. Now to rewire the Topaz I use for my digital zone balanced and hopefully get rid of that buzz as well Appreciate the information and coaching from those far more expert than I. It's great to know enough about how these things work to have the confidence for this type of rewiring job.
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