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flkin

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About flkin

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  1. flkin

    Pink Faun 2.16

    Rajiv, are those 6 power amps stacked up high in the pic? Talk about tri-amping with mono blocks! Wow
  2. flkin

    Pink Faun 2.16

    I’m using the Vinnie Rossi DAC2. It has a femto level clock on board but not OCXO. I have no idea why clocking upstream from the dac matters at all. This has been discussed at length by some with the conclusion that there must be something at play not understood yet. Still re-clocking works and the benefits are easily heard.
  3. Hi guys, I’ve had a chance to install the new extreme USB clock board in my Pink Faun 2.16x streamer replacing the older one. The new clock improves the phase noise by -22dbC/Hz. My impressions of the new sound is here : Have a read if you’re interested. Thanks.
  4. flkin

    Pink Faun 2.16

    My 4 Pink Faun extreme clocks have arrived! 😄👍 Actually they arrived a week ago but I was in the middle of some tests and wasn’t able to install them into my Pink Faun 2.16x streamer at that time. But I have since started with the first one and it’s been in my system for a week now. I started with the 20Mhz USB clock first as it was the easiest one to replace on the USB board. Three plastic clips hold the clock mini-board to the main board which are replaceable. A quick squeeze of the flare tips and the replacement was completed. A reboot and all worked as expected again. The new clock is physically different from the old one. It’s thicker by half and has Pink Faun markings on it. From what I can see, the mini-board is otherwise the same as the old board. The picture below shows the older Connor Winfield OH200 clock. The specs show this older 20MHz clock to operate with a phase noise of around -110dbC/Hz at an offset of 10Hz. The new Pink Faun extreme clock operates at a quieter -132dbC/Hz - a whopping 22dbC less than the old clock! Whether the reduced clock phase noise makes a significant difference is the question now. In the past I had compared the Pink Faun USB (with the older CW mini-board) directly to my DAC vs. the same via a tx-USBultra with the Mutec 10MHz reference clock attached. I covered this in my earlier review of the streamer and I found no appreciable improvement in sound. Why would this be as the Mutec Ref clock has an amazingly low phase noise of -142dbC/Hz? It’s due to the way reference clocks are attached to HiFi system. The reference signal has to pass through a ppl converter to generate the required frequency prior to being connected to the USB board. Along the way the signal is processed from 10MHz to 20MHz passes through at least 2 sets of cables, noise from a few power supplies injected and a multitude of connectors. This would seem to degrade the clock contribution to the level roughly matching a directly connected USB clock with a phase noise of -110dbC/Hz. And so now after burning in the clock for a week, is there a difference in sound quality? Isn’t the original 20MHz clock at -110dbC/Hz enough? Does the new extreme clock matter? Matter it does, and not subtly. I was concerned that the listening test would be spoilt by expectation bias. The clock switching was a one way action (it isn’t but I didn’t want to fiddle too much) so I invited 2 other friends over for their listening opinions before and after. A clock really needs at least 24 hours to warm up and stabilise to sound it’s best so a direct swap from warm clock to a cold one isn’t really a direct comparison but was what it was. Even cold, the extreme clock immediately brought a new level of naturalness to the music. It felt like there was less effort to enjoy the music. Initially it felt quieter and then we realised it was from the speed of dynamic sounds being controlled faster. Music felt more alive and exciting and with the increased speed, new details and emotions revealed themselves. My friends felt the mid bass tightened and become more bouncy as well. There was an improvement in 3D spatial accuracy too. Especially obvious in complex music with many performers, the separation of the different musical threads from each performer was clearer and easier to follow. Live music is now more of a joy to listen to, the clarity of the stage, audience engagement and subtle echos recreate the live experience so well. I especially enjoyed the following No Woman No Cry (reprise) track no.20 on the Sound Of Blomberger Songfestival 2007-2011 album available in Tidal. With the new extreme clock, it’s something to behold, especially the drum solo at the end, amazing transient speeds. People who have played with clocks before will recognised much of what I have said. The benefits of a better clocked sound is an all round better sound with few negatives. Again, mostly true in my case and the reduction of a further 22dbC/Hz does makes quite a difference. Where will it stop? How far lower does phase noise go before it makes no appreciable difference? I don’t know the answer for this but a directly connected -132dbC/Hz, 20MHz USB clock makes a clear difference to me. There are other streamers that say clocks don’t matter - like the new SGM Extreme server with 2 CPUs and external power supply. I’m finding it difficult to accept this claim as so far to date, every better I’ve clock used brings about a whole new level of refinement to the music. I did find however that the sound character of my system changed slightly. Not for the worse, just different. It used to be a darker side of neutral but after a week, the new extreme clock sound comes across as brighter side of neutral. Perhaps it’s still settling in and requires more time to break in, or perhaps I have to tune the system again with cables. As it is now, it’s a new level for my Pink Faun 2.16x streamer just when I was thinking how it can’t possibly be improved. Bravo Jord, thanks for the upgrade! Next up, the motherboard and CPU extreme clock upgrade. This is a little more tricky as it involves some soldering so I’m planning to do this next week and will post my impressions here after.
  5. flkin

    Pink Faun 2.16

    The all black faceplate looks nice 👍
  6. flkin

    Pink Faun 2.16

    The Pink Faun 2.16x will be Munich Hi End Audio Show 2019. Partnering with Aries Cerat equipment. I've always wanted to hear the Kassandra II DAC with the PF. If any one goes to the show please comment! https://www.monoandstereo.com/2019/04/aries-cerat-at-munich-high-end-audio.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed:+monoandstereo/HOym+(MONO+AND+STEREO+Ultra+High-End+Audio+Magazine)&m=1
  7. Yes, please do let us know after you try
  8. I need to correct my earlier statement which was slightly incorrect. On the 14/3, Paul said the following "I have build 15 in soak test and I am working on finishing build 16 now." Hopefully he's pushing ahead now
  9. #15 burning in, #16 started a week ago
  10. The sampling bug in Roon is said to have been solved since version 1.6 and some say that Roon's upsampling handling seems to have improved somewhat - something I have yet to find time to test out again. Will get around to it one day
  11. flkin

    Pink Faun 2.16

    For those that want to use ramroot in their PinkFaun ( or other machine that run AudioLinux 2.0), there is a hidden function to automatically save the ram image of Roon back into the storage without having to do it manually in the menu. This is important for keeping changes made in Roon up to date. Its set up like this: In AL menu, select console then su password systemctl enable ramsave.timer or systemctl disable ramsave.timer menu (to return to headless mode) save (so after reboot it still works) The period of auto saving can be changed: Edit as root the file /etc/systemd/system/ramsave.timer using File Editor Root The content is [Unit] Description=Runs ramsave periodically [Timer] # Time to wait after booting before we run first time OnBootSec=30min # Time between running each consecutive time OnUnitActiveSec=30min Unit=ramsave.service [Install] WantedBy=multi-user.target You can change from 30min to any value you want. The default is 30min
  12. flkin

    Pink Faun 2.16

    How does one underclock the RAM in the PF? My average CPU core temp reported in AL menu runs around 58-65C playing 44.1 files. At this time my optimal settings are: AL2.0 running Ramroot, Extreme 1, no upsampling/convolution in Roon. PSP off and video card removed. No major sound changes for this last two steps unlike the above. One thing about turning off PSP, I'm finding that the core loading on the cores are less even than with PSP on. So I'm not sure if I want to keep it off. Still testing for now
  13. flkin

    Pink Faun 2.16

    Yes that would certainly be interesting, unfortunately not an easy group of streamers to get together to listen to! The SGM and the PF has shared roots as the SGM clock module was built by PF in the 2015 model. PF made them a power system too but they ended up going with another design. A local friend heard the SGM Extreme prototype in Hong Kong and said it was very nice.
  14. flkin

    Pink Faun 2.16

    Havent listened to either of those so I wouldn’t be able to comment sound wise. Technically the PF has a lot going on internally that differentiates it with others - up to 5 extreme clocks internally, star earthing, up to 20 linear supplies, PF version of AudioLinux. I did an technical breakdown of my unit, have a look here it that interests you: https://audiophilestyle.com/forums/topic/30376-a-novel-way-to-massively-improve-the-sq-of-computer-audio-streaming/page/367/?tab=comments#comment-862221
  15. Hi Paul Perhaps the way I have been writing doesn't treat you with sufficient respect for a giant in the audio world that has contributed a great deal over decades. For my frustrations taken out on you, valid or not, I apologise. 🙏 Your supplies are undoubtly fine and you have many happy customers today. Let's take our particular situation private and continue via PM/email. I still do want to let go of my order as my audio journey has led me down a different path now. My suggestion of disclosing the status of your production queue doesn't require you to state the owner of the queue, only the current queue number being worked on and level of work on that unit. Please do consider, it will surely save you a lot of time and heartache going forward.
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