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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. Currawong Contributor
    I started the Mojo FAQ here: http://www.head-fi.org/a/chord-mojo-faq
     
    Please add to it.  
     
    Mython and x RELIC x like this.
  2. Ra97oR
    Are you sure you don't need an OTG cable in the Mojo?

    I tried it using a bi-directional 5 conductor OTG cable, I don't see how it works without it.
     
  3. NZtechfreak

    Not true, or at least if true strange then that Google sell C OTG cables on their device store.

    Edit: checked the store and they are no longer referring to it as OTG, they were a few weeks ago, I checked for them specifically when the 5X and 6P were announced. A matter of nomenclature I guess, with this connectivity being baked into Type C. Link to the ones Google sell here -https://store.google.com/product/usb_type_c_to_usb_standard_a_adapter

    Is that the one you have Gavin? As per tests conducted by one of the Google engineers a lot of type C cables currently being sold do not conform to the standard. The cable you have might be data and charging only?
     
  4. puffmtd

    Yes sir, it's a first gen X5.  It also works on the first gen X3, Cayin N6, QLs360 and DX50.  I have a ton of regular 3.5 interconnects here and so far all of them have worked just fine.
     
  5. muah
    hi George. if u use 3.5mm interconnect, it is not digital output into Mojo. I would rather output via Optical, which is digital out from your DAC, into the Mojo, and Mojo DAC does its magic.



     
  6. georgelai57

    Hi,
     
    Yes that's why it's kinda confusing. Obviously with a Mojo, I'd want it to receive digital in and the problem seems to be that for co-axials out from budget/mid-priced DAPs, there's a little bit of knowledge seeking.
     
    Optical seems to be the way to go though it doesn't push the envelope all the way as co-axials. Another way is of course USB OTG but I don't wish tho use an Android phone at the moment, so I'll probably look for an Android DAP.
     
    Thanks again.
     
  7. headwhacker
     
    Coaxial output in DAPs including DX90 is digital. Athough it transmit voltages like an analog output it's still in digital domain. The use of a regular 3.5mm to 3.5mm stereo interconnect will work as suggested but is not ideal due to lack of shielding.
     
  8. x RELIC x Contributor

    The signal is not being output as analogue. Copper is copper and the biggest difference when using a 3.5mm 75 Ohm coaxial cable is the shielding. It would not work with the Mojo AT ALL if the signal was not digital being passed through. All sample rates work as expected through the 3.5mm interconnect. Coaxial output from the DAPs is digital. Coaxial input on the Mojo is digital. Quite simply the Mojo is doing all the magic or it won't work at all, there's no in between.

    Honestly, digital out means digital out. No need to muddy the waters with confusing mis-information.
     
    georgelai57 likes this.
  9. Clemmaster
    What makes a cable OTG is the way the ID pin (pin 4) of the micro USB connector is connected. When that pin is connected to GND, the device to which it's connected becomes the host and the other end of the cable (pin 4 either absent - in the case of a full size connector, A or B - or unconnected) the peripheral.
    You want the Mojo to be a peripheral to your phone (the host), so you don't want to connect an OTG micro USB connector to it!

    https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.ti.com/lit/wp/slly017/slly017.pdf&ved=0CHkQFjAOahUKEwivs_6Sw_3IAhUDqh4KHSjNDYg&usg=AFQjCNFvH1pYgRByc_-ZhZ39jU88rA76zg&sig2=j_ef5Ps_Hwl5GhArzMzmcg
     
  10. sling5s
    What is comparable to the Mojo Dac? Since I'm familiar with Schiit Gear: Bifrost Uber or Bifrost Multibit, or Gungnir Multibit? 
     
  11. salla45
    [​IMG] 
     
  12. salla45
    Still struggling to get together something to connect my X3ii to the Mojo.
     
    I found my cable like this which came with the X3ii. Now... i need to find something to plug into the other end. But searching on Amazon , etc yields options with 2 and 3 RCA connectors only. Can anyone help me with a link to a single RCA male at one end and whatever is needed to plug into the dig in coax for the MOJO.
     
     
    This whole cabling issue is a minefield for the uninitiated :)
     
    Capture.jpg
     
    Thanks in advance! I'm going crazy!
     
  13. salla45
    maybe i've found it..would this be right? ( edit - Just noticed this is female also on the rca end :frowning2: - would need ANOTHER connector to adapt male-male... grrrrr!)
     
    Capture.jpg
     
  14. muah
    Coaxial - Connect using coaxial to an external DAC, to allow DX90 as digital transport.

    It is written in the manual.

    If you use the 3.5mm output or the Line Out, you are sending analogue signals out of the DX90, usually this goes into an amp, i.e. ALO CDM, to boost the analog signal or sometimes 'color' it.

    The magic of MOJO is the DAC, so i will only send digital in. and also MOJO has Coaxial input, Optical input and USB input only. No 3.5mm analog inputs.
     
  15. sling5s
    Is moon audio (Drew) the best place to buy them?
     
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