USB Nervosa Thread Decrapifiers, pro interfaces, and bears oh my

Discussion in 'Digital: DACs, USB converters, decrapifiers' started by zerodeefex, Sep 28, 2015.

  1. bixby

    bixby Friend

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    The better ones even let you hear the brand of pantyhose.
     
  2. wormcycle

    wormcycle Friend

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    But that requires the level of non-audio expertise that I, regretfully, do not posses.
     
  3. bixby

    bixby Friend

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    This was enlightening to me. Apparently, I have ingested lots of bad info over the years .

     
  4. Armaegis

    Armaegis Friend

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    For just a couple $$ you too can purchase some nylons and practice rubbing your thighs together. How to extrapolate that into enjoyment of audio is up to you.
     
  5. crenca

    crenca Friend

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    @ 3:00 mark, "This is the kind of stuff you don't want to do, kill dogs owned by female attorney's" LOL!

    He does not understand octane as a higher octane rating, which is a measure of pre-detonation resistance, will not in of itself damage an internal combustion engine (though the opposite will - a fuel with too low rating for a given design will pre-detonate and possibly damage an engine). He is right in that paying for a higher octane fuel than your engine is designed for is a waste of money.

    I have an uncle who owns a small cattle operation. I wonder if I purchase the manure and created an audiophool "grounding box" with it how much I could charge...$5k? $10K?

    edit: Yikes, his solar system example has me thinking: I wonder if my $30k system was "grounded" (with a ground rod, turning it into a 'lightening rod' circuit)??...
     
    Last edited: Sep 21, 2020
  6. AllanMarcus

    AllanMarcus Friend

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    How small are the cattle?
     
  7. Taverius

    Taverius Smells like sausages

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    Are the cattle rare breeds. The more expensive the cow, the happier the electrical pixies.

    They're weird like that.

    I remember searching for Intel NUC stuff one day and randomly ended up on a circle-jerk thread in some random forum were these people were sucking each other off about how they had the secret knowledge that putting an Intel Optane SSD in NUCs was key to audio quality.

    I wish I was joking.

    So, yes, you absolutely can sell that, and you should.
     
  8. beemerphile

    beemerphile Friend

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    It can detonate, it can pre-ignite, but it can never, ever pre-detonate.
     
  9. earnmyturns

    earnmyturns Smartest friend

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    Woodoo?
     
  10. Thad E Ginathom

    Thad E Ginathom Friend

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    You could sell it to Sausageistic Soostems to stuff their connectors with.

    Pay more attention to the presence or absence of hyphens! What you are talking about would be a small-cattle operation. A small cattle operation might refer to the surgical removal of a wart.
     
  11. GoldenOne

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    Got an MC3+ in at the moment. Jitter performance is 'good, not great'
    Coax output seems to just be straight up bad but the clock out and AES out are fine. Not upto same performance as a singxer SU6 or even SU2 though.

    MC3+ Jitter 48khz AES:

    AES 48.png

    MC3+ Jitter 48khz Coax:

    48.png

    SU-2 (KTE edition) jitter 48khz Coax:

    48k jitter.png
     
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  12. GoldenOne

    GoldenOne Friend

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    Some internals of MC3+ attached
    You'll have to excuse the camera quality, my phone camera doesn't handle closeup stuff well
     

    Attached Files:

  13. GoldenOne

    GoldenOne Friend

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    Denafrips Gaia measurements, including testing clock-syncing with Terminator plus are up here:
    https://goldensound.audio/2021/10/04/denafrips-gaia-measurements-with-terminator-clock-sync-test/

    I've got measurements for a fair few popular DDCs up now if anyone is curious about them.\

    Links:

    Audio-GD DI20HE
    Singxer SU-6
    Singxer SU-2 (KTE Edition)
    Singxer SU-1 (Magnafied edition with Sotm Clock board)
    Pi2Design Pi2AES
    ifi Zen Stream
    Rockna Wavedream NET

    Currently the Wavedream NET is top dog followed by SU-6.
    Though the Gaia and SU-2 KTE are the best which support 768khz (the others are 384khz only) so for HQP users those might be better options.

    Will post the Mutec MC3+ Measurements soon. (It's pretty mediocre. Interesting featureset but coax output is bad and AES output is 'fine' and not as good as half of the above list)

    Also will be doing some testing of the effects of different power supplies on the Pi2AES. (Sorry that's taken so long @Michael Kelly !) I've got a few here to test both via the 24v connection and the '5v direct tweak'. Including the voltage adjustable Ferrum HYPSOS which should give a reasonably fair comparison of '5v direct' vs 24v input from the same PSU.
     
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    Last edited: Oct 4, 2021
  14. batriq

    batriq Probably has made you smarter

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  15. Maven86

    Maven86 Almost "Made"

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    Great write ups. I have the SU-2 KTE and can definitely vouch for its performance (subjectively). One reason I choose it over the SU-6 was its external clock input feature that lets me connect a 10M Rubidium clock for supposedly improved jitter performance.

    To my ears, doing this takes the performance up a notch (again subjectively) and the differences are pretty easy to hear when ABing back and forth. Still, I'd be curious to know how using various external clocks would affect the objective measurements of the SU-2.
     
  16. GoldenOne

    GoldenOne Friend

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    Possibly, though for now I'll probably stick to testing with various readily available PSUs.

    Yeah It's a shame the SU6 doesn't have that. But then given the standalone performance I'm not sure it's needed.
    10mhz clocks are not something I've dabbled with yet, would definitely be interesting to do so though.
     
  17. GoldenOne

    GoldenOne Friend

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  18. Jdriver

    Jdriver New

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    I wish I was joking too but I read on HF in a post by one of their “supremes” that different memory cards sound different, the smaller the better because “ the cells are bigger.” The same person claimed they could hear differences when swapping out individual components and even when using different solder! o_O
     
  19. ogodei

    ogodei MOT: Austin AudioWorks

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    In the SU-6 discussion over on Head-Fi the conversation eventually came around to improving performance by filling the box with sand. This "takes away the micro vibrations that cause most of the clock ( oscillator ) noise ( jitter )" and makes the "presentation even more focused".

    I volunteered that you need to use common yellow sand as the crystalline quartz structure traps the random resonant frequencies coming off the hardware. Don't use white sand (too much calcite) or black sand (too many minerals) as they could cause short circuits and harm the equipment.

    Someone here should follow the process and get measurements: https://www.head-fi.org/threads/singxer-su-6.902272/page-14#post-15450685

    Perhaps @GoldenOne could retest the SU-6 with the "Sandy Sound" mod. ;)
     
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    Last edited: Oct 6, 2021
  20. Biodegraded

    Biodegraded Friend

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    Both mineralogy and grain-size distribution are important considerations. Different minerals have different seismic velocities, so will therefore attenuate different frequencies at different rates. And if the grains are poorly sorted for size the pore spaces between them will have a wide size range, therefore also affecting a wider range of frequencies.

    So composition, sorting and of course total volume of the mix are all critical. I'd look forward to bedtime reading about such experiments in my favourite seismology journals, but the case of my bedside DDC is full of holes so I'll have sand-leak nervosa.
     

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