Avermetrics AverLAB Measurement Gear

Discussion in 'Measurement Setups, Systems, and Standards' started by purr1n, Apr 24, 2018.

  1. purr1n

    purr1n Finding his inner redneck

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    I got a little surprise when I came home today. I couldn't wait to unbox this thing and get started. It literally look me five minutes to set up. Open box. Plug network connector in. Download software. Turn unit on. Wait for firmware update (less than a minute). Restart. Yahoo!

    FYI, Avermetrics is a local outfit (even more reason for me to support them) with some dudes from AP, M-Audio, Avid, etc. It's not cheap at $3k from Amazon, but from what I've see so far, very well worth it.

    The hardest part was figuring out that the SPDIF coax output was indicated as SPDIF B in the software.
    IMG_20180424_202828 (1).jpg
    IMG_20180424_205252.jpg

    Check out the Modi2u measurement. So clean and so immune to environmental fuckery! This is going to make measurements so much easier than with the QA400. No USB crap. The AverLAB is controlled via Ethernet. I love the dBc button that just auto aligns 0db output from the DAC with the 0db line on the plot.

    Look at those results below. I can now go neener neener neener to the nubs who used to have better tools than me! (BTW, it's the man, not the machine, but a good machine certainly makes things easier).
    Mimby Aver.png

    I'm sure there is a lot more that this thing can do that I have not even tapped. To be continued...
     
    Last edited: Jul 4, 2018
  2. cskippy

    cskippy Creamy warmpoo

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    Very nice! Let's see Yggdrasil Analog 2 next! Or your favorite, ADI-2 DAC. :p
     
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  3. purr1n

    purr1n Finding his inner redneck

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    Linearity. 1kHz signal from -180dbFS to 0dbFS.
    Mimby Linearity.png
     
    Last edited: Jul 4, 2018
  4. ultrabike

    ultrabike Measurbator - Admin

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    The real question is how many Amir-bits are you getting out of Modi Multibit.
     
  5. ultrabike

    ultrabike Measurbator - Admin

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    LOL! Shit man, I think that box has better specs than the dscope Series III.
     
  6. purr1n

    purr1n Finding his inner redneck

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    Well, linearity is not necessarily a function of bits, but in terms of Amir-bits, it's a little less than 110 / 6. So 18 amir-bits.
     
  7. jexby

    jexby Posole Prince

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    waitaminnit. how did mini Juud not get a hold of this device FIIRST and promote it as gawd's authentic measurement truth?
     
  8. purr1n

    purr1n Finding his inner redneck

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    Check this one out. THD+N in db. Takes a few seconds to understand, but I know many of you guys will get it.

    Mimby THD in db.png
     
    Last edited: Jul 4, 2018
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  9. ultrabike

    ultrabike Measurbator - Admin

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    That's about 17.4 bits (ENOB) at around 0 dBFS me thinks.
     
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  10. Cspirou

    Cspirou They call me Sparky

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    More bits than the Lyr 2!

    Does it have a routine to test jitter?
     
  11. ultrabike

    ultrabike Measurbator - Admin

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    The APx555 is 5.08" high, while the Avermetrics is only 1.75" high. That's like over 50% taller than the Avermetrics.
     
  12. Elnrik

    Elnrik Super Friendly

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    I'll take the APx555 then. You know... To compensate for how short Jude is.
     
  13. Priidik

    Priidik Friend

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    This is awesome functionality. This could reveal one or two things about amps and output stages.
     
  14. purr1n

    purr1n Finding his inner redneck

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    No. If there's a downside, the software could be improved. It's really only a matter of time. I hear that the Avermetrics guys are receptive. The product is still very new.

    P.S. It doesn't preclude me from using ARTA as the source for JTEST and using the audio analyzer FFT.
     
    Last edited: Apr 24, 2018
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  15. Ash1412

    Ash1412 Friend

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    Sorry to ask but which batch is this Modi Multibit from? Its linearity seems to be better than that of the Modi Multibit @atomicbob measured from a while a go.
     
    Last edited: Apr 24, 2018
  16. atomicbob

    atomicbob dScope Yoda

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    Congratulations! This is most excellent.

    I've often thought about writing a dScope script to combine the THD+N vs. level with THD+N vs. frequency to produce a waterfall plot. Same for Gain Linearity. Those two plots would be useful.
     
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  17. purr1n

    purr1n Finding his inner redneck

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    This Modi Multibit is pretty old with the -1 to 0 transition codeword glitch.
     
  18. Hands

    Hands Overzealous Auto Flusher - Measurbator

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    Could we get a more zoomed in view of the linearity results, with the line going horizontally instead of diagonally, zoomed in for something like a +/- 6dB amplitude axis, down to somewhere between -100 and -120dB?

    I need to know if there are subtle variations that might make the DAC trashcan-worthy despite me enjoying it thoroughly subjectively.
     
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  19. AllanMarcus

    AllanMarcus Friend

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    very cool!

    Might be nice to see how it measures something that should be shitty, like the output of a motherboard directly.
     
  20. monacelli

    monacelli Friend

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    Further evidence that Nwavguy Jr is either incompetent or has ulterior motives. Glad to see Marvey with such a capable new instrument. Hopefully this new setup can serve as something of a deterrent against would-be e-peeners. Too often lately we've seen people bork measurements and then hold their own idiocy against manufacturers.
     

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