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flkin

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  1. flkin

    Pink Faun 2.16

    Oh one more thing..... Manufacture of the new Pink Faun clocks are complete and ready to ship to Jord. Exciting to see what will he will do with them. I suppose it will still take sometime to incorporate them into existing products, test and fine-tune them before they are ready to use. Also Jord is working on a RAM version of the Pink Faun AudioLinux OS and other usability improvements to the OS. Shouldn't be long before it's ready for us to try. What a nice Christmas present this would be 😁
  2. flkin

    Pink Faun 2.16

    Update about my SonicTransporter i5 tests, I removed the internal 64G drive containing the OS and the device still booted up fine with a Windows USB dongle. So the Bios is already preset to boot from USB prior to internal HD. But the design of the STi5 is such that access to the internal drive requires the thermal paste on the CPU to be separated from the heatsink...bummer. So I have to get some Arctic Silver to redo the paste before continuing.
  3. flkin

    Pink Faun 2.16

    @lpost, that's good to hear that the Bios reports at +20c but I'll still use my suction fan on top of the case. It seems to work well at the cost of more dust inside the streamer over time. The +20c figure seems so far off what is reported by the Bios it might be best to think on it further. With the heat extractor device and pipes on top of the CPU, your infrared thermometer might not be measuring the hottest part of the CPU? Also the temp sensor inside the CPU would be reporting the internal temp rather than the surface temp and this would presumably be quite a bit hotter than the outside. In my 2.16, the top lid hand-feels hotter than the side fins. The convection airflow should keep the fins cool as designed but I find the top lid surprisingly a fair bit hotter than the sides. After using the suction fan, it's a lot better so I'm surprised you didn't get far better results without a lid. I suppose it comes to the volume of the room enclosure also and if small like in a closet, a steady hot state might form. If in a larger room with ventilation, I suspect a removed lid would make a larger difference. My hifi room where the 2.16 sits get noticeably hotter when the door is closed and left for sometime. The device is a small heater!
  4. flkin

    Pink Faun 2.16

    hmmm, my unit seems to be running hotter than yours but also not upsampling currently. After much back and forwards, simple Roon NOS sounds better now. I was always the sharper focus in HQP that was so attractive to me but with our 2.16x I feel the clocks are making the sound focused enough and so organic. I did see some temp readings in the bios when I last accessed it during use running at CPU 77C and motherboard 50C. Using a hand feel, the temp is roughly the same when on but not in use. I think it might be tropical Bangkok conditions and the ventilation of the room. Probably should increase the airflow in the room. So I figured that it would do with an external fan sucking hot air out above the CPU while not being used. Picked this one up in Amazon and it's great. Hand feel shows much reduced temp to probably acceptable levels. https://www.amazon.com/gp/product/B012CL2V3I I also picked up one of Piero's USB AL boot to ram drive for my unused i5 SonicTransporter. Will try to configure it as a Roon endpoint and see what all the fuss of the NUC/ALinRam endpoint is all about. With the default Sonicorbiter OS, it wasn't a step forward as an end point. Detailed but harsh, not something I could listen to for a long time. Doing some experiments with a re-clocked switch now (SOtM mod with external Cybershaft OP-14 clock). Putting it between the router and the 2.16x. In the past with the Trifecta, it wasn't a step forward but at that time I had also used the re-clocked txUSBultra between the 2.16x and the DAC. Don't recall testing just the clocked switch alone so I'm doing it again now. So a few things on my testing plate but will also try the extreme mode too a little later. Thanks for the details of setting this up.
  5. flkin

    Pink Faun 2.16

    Not yet. I had thought that the default settings were already on extreme in that the CPU cores were not using power saving modes and operated on full output constantly. I find my case remains very hot when it is on while not being used for this reason. I can't imagine what else the Extreme mode setting brings - do you find the streamer getting hotter than before? How did you switch on the extreme mode?
  6. Did you change the Bluetooth or Wan/wifi settings? This helped a license issue I had with HQP embedded.
  7. A quick note to inform that a bug in Roon’s convolution module has been found in the handling of resampling impulse response and acknowledged by Brian at Roon Labs. Details in the link above. Once fixed, I’ll revisit Roon’s convolution again, perhaps it’s still an option after all. 😄
  8. Update on Roon convolution. Looks like there is indeed a bug in the convolution module in way resampling filters are handled. Alex Eiffel in the Roon communities found a way to measure the problem and deduced the issue. CTO Brian from Roon Labs accepted his reasoning. Full details are here in message 137. https://community.roonlabs.com/t/convolution-with-null-filters-are-audible/51732/138 but probably safe to say this will eventually be fixed in Roon eventually. Convolution might be usable after all! 😅
  9. @zephyr24069 Has there been any improvements in the power supply side in the OP17, OP20 and OP21 compared to the OP14? Would any of these compare well with the Mutec Ref10?
  10. Yes I have 😁 and it's good! 😉 I don't mean to take credit for the recent thread discussions about Piero's AudioLinux as AL has been around for a long time, but it's one of the design features in the Pink Faun 2.16x streamer that makes it sound sooo good. And this was described in detail in both my reviews of the PF where I explained that Jord worked with Piero to create an optimised version of the AL for the streamer that emphasised on low latency. Actually Piero talks about this in his website also shown below (didn't ask for permission to clip this, hope it's ok). I'm hopeful I contributed to this thread by kickstarting the AL cause or at least nudging it along in the early discussions but even if not, glad to see the benefits people are experiencing now. Larry, you've got me interested in seeing how your NUC/AL might server as an Roon endpoint with my PF as a streamer. I already tried it with the SonicTransporter i5 (and the usual ultraRendu, sMS-200 etc) but it didn't work out. Perhaps the difference is in the OS. I wonder how much it would cost to build one with say the SOtM sCLK-ex card inside with a ref clock input? I'm loath to switch back to an end point without clock options. But it's true that a double box 2.16 would sound better - I don't have personal experience of this - but Jord informs me that this is how he plays his own system today and recommends it. I wonder how many people could go this route given the costs! 😅 What's interesting is what Pink Faun is planning but still sometime to go : Quote "We're planning a high-end build of the Scion within a couple years, this high end version can be used right after the streamer 2.16, sort of a dedicated dual setup!" A high end Roon endpoint based on an extreme version of their Scion. An ultra-capacitor version matched to their 2.16 streamer. It would still have to be reasonably priced to make it work though.
  11. Ok folks, I've ran HQPlayer with the mono Null filters and I cant really tell the difference between using the filters and not. Perhaps a slight worsening with the filters in but I wouldn't be able to tell in a blind test. So I'm thinking there's something broken with the Roon convolution filter system. It's audibly damaging the signal even with a Null filter that should do nothing. Brought it to the attention of Brian at Roon and he's added it to his list of things to do but it's a long list and he won't be working on it anytime soon.
  12. One can always add an external fan to suck out the hot air. Powered separately, it would add no electrical noise. And the fan at the low setting is very quiet, basically inaudible at normal listening distances. https://www.amazon.com/gp/product/B012CL2V3I
  13. Yes you're probably right, there's a missing zero there. I quoted Kenji-san directly but probably it's just a typo and should be 1.05 rather than 1.5. Thanks for pointing this out.
  14. I used both. The Mutec ref 10 was on loan and the Cybershaft is the OP14, one of the last to be made apparently. SOtM clock mods generally use their distribution board (the sCLK-EX) to split an external clock ref signal into what ever frequencies you need. Up to 4 different output frequencies can be programmed. So say a streamer had the sCLK-EX board inside you would still need to feed it from an external clock. In my case the clocks are actual OCXO clocks at the final use frequency and attached to the location they are required. No reference clock signal nor frequency programming is needed. It's part of Pink Faun's streamer design to offer these as optional clocks and wasn't a mod as such. There are others offering similar devices, like the JCAT LAN or USB femto cards with good clocks on board already. The motherboard and processor clocks are more tricky and was matched specifically for the AsRock board and AMD Rizen processor Pink Faun used. I suspect the Audiolinux operating system and even bios was tweaked for this. I say this because apparently others like Innuos and The Linear Solution have tried to reclock the processor and had faced issues with stability.
  15. Yes I have used both with the external tX-USBultra to distribute the clock goodness in a spaghetti setup. This was before moving to a single box streamer with clocks built in. Initially during the burning in process the external clock still helped. But after the Pink Faun settled down, I found that the internal clocks had exceeded the sound of the external reference clocks didn’t need them anymore. The discussion of using a NUC as a Roon end point has got me interested in using external clocks again. I wonder if Larry can assembe a AL unit that accepts an external reference clock signal? Even Jord had said ultimately a two box solution was best. He uses two 2.16 machines as the streamer 😅
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