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About lmitche

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  1. Try the Tera Grand ultra flat or premium double shielded (jssg360 like) Cat 7 cables on Amazon. 50 feet for around $20 makes them affordable. My requirements are for a 10 to 12 feet long cable. The flat cable sounds terrific here, much more open then the prior Monoprice slimrun cable. I later noticed that the premium cable has jssg360 like construction and acquired one for testing yesterday. It needs to cook for a few days before any critical listening. Thanks to @Iving for the reminder to try the Tera Grand cables. Apologies to @Jud who just bought Monoprice cables on my recommendation.
  2. I have this problem all the time. My guess is that a newly downloaded version of the kernel doesn't contain the driver for the wireless Logitech keyboard used daily here. So when this happens, if I subsequently run an "Audiolinux update" from the menu it is fixed. Likewise if I run "Audiolinux update" from a ssh terminal without the Logitech dongle in place, the same thing happens. This forces me to use the ramroot method described by Piero.
  3. It is terrific to see someone discuss what is observed here, that SQ largely correlates with the dynamics of supply and demand for current, and perhaps not just the magnitude of average current demand. Put simply the lower the variance of current demand, the better the SQ. Variance can be controlled by lowering clock speeds, disabling energy saving features and tuning memory timings. Likewise stopping unnecessary processing and disablement of unnecessary circuits can often be accomplished through bios or software settings. On the supply side, a power supply that can keep up with the volatility of demand for current is key, and hence the reason some supplies sound better then others. Lastly, it is much more difficult to build a fast, high current DC power supply vs. a lower current supply. Hence low current demand devices like NUCs are well matched with low current, fast supplies like the Paul Hynes SR4. High current fast power supplies are few and far between, are either unobtainable or stupidly expensive.
  4. After writing this I realized that my configuration was less than optimal. After fixing that oversight, the AL2.0 real-time, non-BFQ config on both the Roonserver and endpoint running Roonbridge beats all other options. It is the most natural and coherent of the options tested here today.
  5. OK, to my ears AL2.0 Roonserver/Roonbridge endpoint both without the BFQ scheduler and AL2.0 Roonserver without BFQ/Euphony Stylus sound pretty much the same. They are very close. Its a matter of taste which is best. Having said that, I like AL2.0 Roonserver without BFQ and AL2.0 Roonbridge with BFQ better. This configuration just sounds more musical to me. YMMV I did go back to all BFQ, and determined the server just sounds better without.
  6. Yes indeed, and thank you again, it was a useful post in the pre-ER era.
  7. I had the same dream and in my dream the 1 meter minimum message was from Mr Swenson.
  8. If you haven't sold or returned your EtherRegen, I'd be curious to hear the results of a second trial after the firmware is updated. You may be surprised.
  9. Alan, Sorry, by Unix convention the leading # sign tells you that you need to be root to execute the command. Otherwise # means comment and everything following is ignored to end-of-line EOL. That's why nothing happened above. Larry
  10. Unfortunately disabling eee with ethtool will not survive a reboot. It looks like a kernel command line option will do the trick. Piero, it's probably best to do an expert menu choice for this. What do you think? Larry
  11. In case you are interested, here are the commands to turn off Energy Efficient Ethernet on Archlinux. They need to be run from an elevated CLI. They work on both my AMD server and NUC I7 endpoint. Note: The device name in the examples below, enp5s0f3u4, needs to be substituted with the unique device name used in your build. Do this by typing: #ip a 1) Load the ethernet tool: #pacman -S ethtool 2) Show the current state: #ethtool --show-eee enp5s0f3u4 3) Set eee off: #ethtool --set-eee enp5s0f3u4 eee off If you are in ramroot don't forget to save.
  12. Here is a cool thing you can do with all that fiber. https://en.wikipedia.org/wiki/Flash_Boys
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