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Chord Mojo DAC-amp ☆★►FAQ in 3rd post!◄★☆

Discussion in 'Portable Source Gear' started by Mython, Oct 14, 2015.
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  1. music4mhell
    Thanks a lott Rob.
    I am very lucky to get your reply on my query.
     
    Thanks for such a wonderful product. This thing has truly changed the whole DAC industry.
     
    pytter and salla45 like this.
  2. Rob Watts
    Yes. Fingers crossed on whether the app has digital gain! Hopefully max = 1.0000..
     
    Chord Electronics Stay updated on Chord Electronics at their sponsor page on Head-Fi.
     
    https://www.facebook.com/chordelectronics https://twitter.com/chordaudio http://www.chordelectronics.co.uk/
    onsionsi and masterpfa like this.
  3. music4mhell
    Now this is tricky, if one app has the digital gain > 1.0000, then that's not a very good input for Mojo(it will contain distortions).
    How do we know if at max. volume the app has the digital gain <= 1.0000 ?
     
  4. NaiveSound

    I'm also curious about this, about to read up on the Android player thread, but also, what do you guys have experience with?
     
  5. lurk

    Tht I think you will need to ask the manufacturer/developer of the app in particular and pray they are as responsive as Chord. :grinning:
     
  6. Rob Watts
    You can always do a listening test. If set to max against 50% say, and it hardens up (becomes brighter) with loud recordings then its clipping. If on the other hand the perception of sound-stage depth is reduced, then the volume control is degrading the sound.
     
    If you do that test and can hear no difference then don't worry, its a good app volume control.
     
    Rob
     
    PS for fun I just did a very quick test using Dave. I listen to radio 3 using the BBC iPlayer. I normally have it set to max. I reduced the iPlayer volume control to half, boosted Dave volume control by +6dB - and yes I felt sound-stage depth was worse with lower iPlayer volume. 
     
    Chord Electronics Stay updated on Chord Electronics at their sponsor page on Head-Fi.
     
    https://www.facebook.com/chordelectronics https://twitter.com/chordaudio http://www.chordelectronics.co.uk/
    onsionsi, x RELIC x and Currawong like this.
  7. Currawong Contributor
    I've added two of Rob's posts about the volume control to the FAQ
     
    Mython and sabloke like this.
  8. EllieFreckles
    I don't have anywhere near me that has this to test. But I'm seriously considering getting this for my HD800. Think I'll order this off Moon Audio, as I can't find any other retailer I know that is selling it, and that has it in stock. I currently have a Lyr/E17 set up. I'm saving up for a better set up for my HD800, but that will be a couple years. With all the reviews and impressions, I'm honestly excited to see how this pairs. 
     
  9. betula

    You are right. DX80 has fixed outputs. Doesn't matter, what the volume setting is if you use lo or digital out.
     
  10. betula

    Do you notice any difference in sound when you hook up mojo with dx80 or note5?
     
  11. ezphoto
    Can anyone tell me how come I only have 32bit on my Macbook Pro? Which one do I choose?
     
    ScreenShot2016-01-21at11.57.40PM.png
     
  12. x RELIC x Contributor

    32bit is the highest bit depth available, you can't change it as its only a display of the max bit depth.

    To the Mojo you typically want to have the Sampling Rate to be what the file's Sampling Rate is or else the computer will up/down sample if all your files aren't the same sampling rate. For example, if you only have all lossy files like MP3 and AAC or cd rips then you want to set the sampling rate to 44.1 and there will be no up/down sampling at all. If you have a mix of high resolution files and lossy and cd quality then one of them will be up/down sampled depending on the sampling rate you choose. Of course the music will still play with pretty much any sampling rate you choose, but it's not optimal with the Mojo.

    The best solution is to purchase a third party software like Audirvana+ that will output the sampling rate native to the file you are playing.
     
  13. ezphoto
    Thanks. I'll try give it a try.
     
  14. masterpfa
    EDIT:

    having read Rob Watts reply edited existing post.
    Now to try for myself. [​IMG]
     
  15. Pier-Fi
    @ezphoto
    JRiver has variable sample rate as well, so does Vox, which is free but not as good as Audirvana and JRiver. BitPerfect and PureMusic are additional contenders. They work alongside iTunes.
     
    cheers, 
     
    Pierre
     
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