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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. NaiveSound
    So you feel mojo improves even with the lower end buds you got?
     
  2. Ike1985
    affirmative, all is better with mojo but I listen to A12's ~98% of the time.
     
  3. jlbrach
    listening to Mojo through ear buds?Now that is funny
     
    GreenBow likes this.
  4. RedJohn456

    whats funny about that? There are some top tier earbuds that sound amazing, esp out of the mojo!
     
  5. headmanPL
    As with a comfortable mattress you don't realise how good it is until you sleep in another bed. I have really been enjoying my music through Mojo. Purely for convenience (laziness) I listened to some music to build a playlist on my phone. I would never have described this as hi-fi, but it never really offended. I was shocked at how all its limitations jarred me. The phone hasn't worsened. I have simply had my ears recalibrated by Mojo and would rather use lesser headphones with Mojo, than stick with my Grados powered by a weaker source.
     
  6. jujuju
    Hi
     
    Sorry to interrupt here !! Can somebody give me an insight if possible ?
     
    If i connected a Fiio X5 to a Chord Mojo into an Audio GD Master 6 amp would this give me an improvement in sound compared to just using the Fiio X5 Line out into the Audio GD??
     
  7. vapman

    Looks like the FiiO X5 supports USB DAC so you should be able to use it as a USB DAC with your X5. then you should notice an improvement.
    mojo is my next head-fi purchase!
     
    (editL i'm wrong!)
     
  8. AndrewH13

    Fiio X5 using coax out into a Mojo is a great combination. Not sure why amp needed?
     
  9. GreenBow
     
    Some folks had a 2p piece sallotaped to the record player needle head to stop it skipping about, hahah. Vinyl though has had a resurgence recently because of the better quality sound that can be got from it. However You need to spend quite a lot on vinyl playing equipment to get that from it. Money that cold be spent on a good CD player. I think it's horse for courses, but I think £ for £ vinyl had it. However I would not lay money on that, and vinyl wear made the case for CD very strong.
     
    Vinyl is the word sometimes used to describe the Hugo, and I was interested. The Mojo seemed to good to miss. Apprently it all works on the processing that Rob Watts does. Something to do with taps. There was the link included a long time ago in this thread, and I am sure googling would find it. However I still have no idea what it is all about after having read the Rob Watts interview.
     
    It's all about taps apprently. Only I can't work out what a tap is, why it matters, or what it does. I can only theorise form what I uderstand about how DACs work. The issue for me is how DACs cope with 44.1KHz music. The higher the frequency of the original sound the lesser amount of samples per soundwave. Until literally at 20KHz you get 2.2 samples per sine-wave. At 15KHz you get 2.94 samples per sine-wave. For me that is not enough.
     
    The argument is that we hear nothing at those frequencies. However upper harmonics are vital. They are responsible for timbre. (To me this is why HD-audio theoretically is better, because more samples shape the waveforms better.) Basically my argument is this. With such a small amount of samples, it's tricky to get back the analogue waveform perfectly. I mean when you only have three samples per cycle how is it possible to be sure of amplitude. You have to measure the x and y position of the sample, note its frequency, then calculate amplitude. I think it's possible for this to get messy at low sampling rates. Long story; but that is why I think they say HD-audio has better timbre, and spacialisation.
     
    I know the argumant against that. However Rob Watts says his taps numbers do just this; get the wafeform back better. I am guessing but have no idea that his extended number of taps calculates the waveform more accurately. Meaning Rob's DAC does a more in-depth and accurate calculation with the sample.
     
    Onny Izwan likes this.
  10. dgcrane
    Hey there,

    I am hoping someone can confirm behavior for me. I have a chromcast audio connected vis optical to the optical in of my ak120. I have the optical out to the optical in of my Chord Mojo. I can get no sound when i plug my headphones into the Mojo but all optical cable lights are red both incoming and outgoing. If i plug my headphones into the aux out of my ak120.... i have music :)

    I WISH I didnt have to unplug my optical cable all the time to plug my headphones into my ak120 directly but go through my Mojo.

    Thanks
    Darren
     
  11. Ra97oR

    Taps is to do with digital filter.
     
    Some basic information without diving into DSP books: https://en.wikipedia.org/wiki/Finite_impulse_response
     
  12. waynes world

    Go with the $5 VE Monk. I jest not.
     
  13. x RELIC x Contributor

    No, you can not use the USB interface from the X5 to output to the Mojo. From the X5 you need to use the digital coaxial output to the Mojo.

    The USB DAC function of the X5 is meant to be used as an external DAC from a computer, not the other way around as a USB OTG host.
     
  14. vapman

    thanks for the clarification... this is good to know!
     
  15. GreenBow

    OK I will check that over. Thank you.
     
    @mscott58 You know talking Lake Street there is another point that the Mojo triumphs with. When I was listening to Lake Street Dive with the Meridian Explorer (ME), I mentioned vocals sounded a bit loud. With the Mojo this is fixed. The soundstage is more balanced, and balances the vocals with everything else. The ME made the vocals which are generally central, sound forward. The ME does include all the information at the side but doesn't present it as evenly. All in the detail. 
     
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