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FiiO K3 • The Review Tour of FiiO K3 All-new Headphone Amplifier & USB-C DAC

Discussion in 'Portable Headphone Amps' started by FiiO, Sep 22, 2018.
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  1. drews
    Can anyone recommend a USB-C - USB-C cable that actually works with this? My K3 won’t power on with my Macbook, Macbook Pro, or PC using either an Apple cable or an Anker Powerline II...
     
  2. FiiO
    FiiO Stay updated on FiiO at their sponsor page on Head-Fi.
     
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  3. drews
    I do appreciate the response and I’ve ordered one, but to be honest I probably wouldn’t have bought the DAC if I’d known that it required an additional, proprietary, unidirectional USB C-C cable (it’s also very short) from an overseas seller in order to work on a Macbook etc. without going through a USB type A-C adapter/hub....
     
  4. Dobrescu George
    One simple option I would have suggested, is to use an OTG

    So type-C to OTG to the normal USB to Type-C cable (?)
     
  5. drews
    I expect that the cable FiiO linked to is a basically a proprietary USB-C OTG cable, though my understanding is that OTG cables should not be necessary for USB-C to USB-C (FiiO initially suggested that a regular data+power cable should work earlier in the thread). USB-C DACs are pretty new, I wonder if there are other DACs with USB-C input that have this problem. Hopefully a firmware update can fix this since I assumed the DAC was broken when it woudn't power with a regular USB-C cable...
     
    Dobrescu George likes this.
  6. Dobrescu George
    It typically should work with any Type-C cable. I mean, I conneced K3 with the really poor Mi Max 3 cable, as well as with a high-end USB 3.1 Type-C cable, and it worked with both. It doesn't seem to be picky on my end, but I'm going from normal sized USB to Type-C, not Type-C to Type-C
     
  7. drews
    It doesn't work with any Type-C cable, as confirmed by another user. Type-A to Type-C does work but newer Macbooks are Type-C only. FWIW, I haven't seen any other DACs that have USB-C inputs...
     
  8. FiiO
    Dear friend,

    You could try this cable for help:
    https://www.aliexpress.com/store/pr...-FiiO-K3-BTR1K-M9-M6/4673052_32961312907.html

    Best regards
     
    FiiO Stay updated on FiiO at their sponsor page on Head-Fi.
     
    https://www.facebook.com/FiiOAUDIO https://twitter.com/FiiO_official https://www.instagram.com/fiioofficial/ https://www.fiio.com http://fiio.udesk.cn/im_client/?web_plugin_id=24494&group_id=47899&language=en-us
  9. Dobrescu George
    NextDrive SpectraX has a Type-C version that works with both smartphone and Windows
     
  10. drews
    It doesn't have a USB-C input.
     
  11. ninetylol
    Got a question regarding the Lineout. Website says its 1.9V output from the 3.5mm lineout. Now i noticed the gain switch actually changes the line out power. So if you would use the K3 as a Dac would you put the volume to max +high gain or at low gain?
    Thanks in advance!
     
  12. Brooko Contributor
    Low gain. High gain also increases the noise floor, so if you are amping anyway, and the amp provides sufficient headroom, stick with low gain. Only use high if volume is an issue.
     
  13. JayNetTech5
    Buzzing noise when the knob is clicked off, and slight channel imbalance when knob is just clicked on with faint volume? There's also some static when turning the knob and little volume is added even though it's turned 4-5o'clock. I am driving 38ohm headphones at low gain. The product also didn't come with pads for the bottom.


    UPDATE: Nvm, found the pads, they were so small and hidden in little box the cable came in.
     
    Last edited: Jan 19, 2019
  14. JayNetTech5
    Gets fairly warm too, I could imagine doing damage on high gain.
     
  15. Dobrescu George
    There should be no damage although it is warm. I had devices that ran much much hotter than K3, you should be in the safe zone :)
     
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