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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. verber
     
    To my ears Gungnir < Hugo < Yggy
     
    and Mojo < Hugo
     
    haven't done head to head between mojo and gungnir 
     
  2. OK-Guy
    Verber... is your post based on ownership or just demo, out of interest... [​IMG]
     
  3. audionewbi
    Yagg is a wonderful amp but it is a desktop dac, at least 50 times larger than mojo.
     
  4. jcoops16
    The short answer is YES
     
    From the manual
     
    Line Level Mode
     
    To set the output level to 3V ( line level ) for connection to a preamplifier press both volume buttons together when switching on the unit. Both volume balls will illuminate light blue. This mode is not remembered so when you switch off it will reset back to the previous volume stored for safety reasons.
     
  5. ksb643
    Screenshot5.png
    Yes it's set to bitstream dsd. Any other ideas? Thanks
     
  6. x RELIC x Contributor

    No.

    For clarity, setting line level output does not bypass the analogue section as it's basically just the analogue output stage of the powerful DAC output. There is no seperate amp 'section' like in traditional setups. Mojo's headphone output is much more simple than what people are used to in a DAC/amp and is basically the same as Hugo with some minor hardware changes to accommodate the diminutive size. I think of it as always line level from the DAC with output power control. To sum up you don't activate or deactivate the analogue section. You simply set the voltage level to 3V when activating the line level.

    At least that's my simple understanding of it. Rob, John, anything to add/clear up?
     
    Currawong, headwhacker and purdah like this.
  7. verber

     
    grudgir: owned (and sold)
    yggr, hugo: ~month long loan (friend out of town)
    mojo: several hour demo -> soon ownership (arrives monday)
     
    OK-Guy likes this.
  8. spook76

    Relic, thank you.
     
  9. mathi8vadhanan
    Picked up a like new Silver AK100 for $280. Sysconcept cable also arrived today. 
     
    DSC00044.jpg DSC00047.jpg
    DSC00051.jpg DSC00053.jpg
     
    Mython, White Lotus and x RELIC x like this.
  10. sandalaudio
     
    Mine plays DSD fine regardless of ASIO, WASAPI or KS. (Just have to remember to turn on DoP if using ASIO).
    Mojo's light turns white and JRiver says DSD playback.
     
    I can't think of any other settings that you can change. You don't have any other DACs connected at the moment right?
    I know windows stuff up if you have multiple kernel streaming DACs connected to USB.
     
    Capture.jpg
     
  11. ksb643
    No other dac connected. I even deleted the Ifi DSD Nano drivers before installing the Chord drivers....[​IMG]
     
  12. sandalaudio
     
    Only other thing I can possibly think of is if you had JRiver's DSP playback setting configured to resample/re-encode everything to high-res PCM.
     
  13. ksb643
    Nope 44.1 96 and 192k all show correctly.Red, green and dark blue. I'm really stumped!
     
  14. sandalaudio
     
    Mojo does seem like it is fairly load-dependent in the high frequency.
    That doesn't mean it will sound bad, but the load impedance causes more output voltage variations above 10kHz compared to many other DAC amps I own, like the Resonessence Herus done below with identical conditions.
     
    FYI the plots I did below are at typical listening volume (around 200mVrms, so around orange to green light) so it's not at reference -10dBU etc. I don't want to blow up my IEMs in the process.
     
    Mojo.jpg
     
  15. aoqw76
    @ksb643
    Do you have event style enabled for wasapi?
    Jriver wiki here has the required settings http://wiki.jriver.com/index.php/DSD#DSD_over_PCM_.28DoP.29
     
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