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iFi audio xDSD- The Official Thread

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  1. dcime
    Without too much detail...
    Last edited: Sep 8, 2019
  2. dcime
    Without too much detail...
    Can you please explain this in Android 9 OTG setup with say a Note 9 device?
    Thank you again

    How does MQA work within the TIDAL app?

    The TIDAL app contains the MQA core decoder and performs the first unfold of an MQA file. Huh?

    What happens if I connect my Android or iOS device to an external DAC?
    If you connect an MQA-enabled DAC, (containing the MQA renderer), you will get the authentication light and the optimal audio quality.

    And why should I be using UAPP app?
  3. Devodonaldson
    Android OS in general runs all audio through the Android audio stack, resampling all audio to 16/48. There are only a few devices that bypass this as they are MQA certified and the Tidal Masters audio runs through the DAC untouched. These are the LG V30 and higher devices and perhaps the g7 and g8. This resampling is an issue in the OS itself. UAPP is an app that takes control and bypasses the native Android sample rate conversion, allowing the first unfold by the UAPP app. Unfortunately, external apps running Tidal are streaming only.
    on iOS, audio sent to external DAC via lightning is bit-perfect, so audio is untouched and is sent to the DAC and run through it at the native rate, allowing for MQA handling by the DAC. In summation, Tidal hifi to iOS to external DAC gives you the correct 16/44 audio. Tidal Masters to iOS to external DAC with MQA ability continues all the unfolds to the highest rate. tidal Masters to iOS to non MQA external DAC gives you the 24/88 or 24/96 that the Tidal app sends via the first unfold. On Android all audio gets resampled to 16/48, other than Masters audio on the MQA capable LG devices. This is why people push UAPP so much, but this is a streaming only app.
    dcime likes this.
  4. Devodonaldson
    Sorry I went into full detail. I've been running Android since it's inception in 2007. I use a used iPhone 7 as a digital transport for music only for apps such as Tidal and Qobuz
    dcime likes this.
  5. dcime
    Thank you. That makes perfect sense to me. I guess iOS has a couple advantages over Android in the bit perfect MQA world. Since I use a Note 9, I have less choices. In fact seems like UAPP is only way to go. :triportsad:
  6. dcime
    Will an iPod touch work as well or the same using WIFI?
  7. Bansaku
    Absolutely! Can confirm 100%!
  8. dcime
    Thanks, so iPad too, yes with wifi only ?
  9. Devodonaldson
    iPod touch will give you bit-perfect audio to external DAC using Tidal for all audio
    iOS devices can and will play Tidal bit-perfect to external DAC streaming or using storage. I have a used 256bg iPhone 7 loaded with Tidal music I use with xDSD and a chord Mojo
  10. Bansaku
    WiFi, cellular, it matters not how the device connects to receive the data.
  11. iFi audio
    Essentially, MQA stream that leaves your phone, has to be bitperfect, otherwise it won't be MQA. If it's not, a LED on our device tells this.
    iFi audio Stay updated on iFi audio at their sponsor page on Head-Fi.
    https://www.facebook.com/iFiAudio/ https://twitter.com/ifiaudio https://www.instagram.com/ifiaudio/ https://ifi-audio.com/ info@ifi-audio.com
  12. ceeloChamp
    Hey all,

    Does anyone here have the xDSD and the Fiio Q5S? I am planning on getting a DAC/AMP exclusively for pairing with my Iphone 11, from what I have read the xDSD seems to have better bluetooth/sound and I travel a lot so I'm going to be using it 70% of the time in bluetooth mode. I've read through there quite a bit, but most of the comments that discussed bluetooth connections just said 'its worse', is the bluetooth connection so bad that it's just completely inadequate or is bt good enough quality to listen to some harder to drive IEMs like the Legend X?
  13. Devodonaldson
    I listen to xDSD in Bluetooth half the time, and it's awesome. The primary I go wired is because I use Tidal hifi, and like activating the MQA capability of the DAC, but it is an awesome DAC/amp in either mode
    ceeloChamp likes this.
  14. hamachan
    I do not have Fiio Q5S but read the following article first how iFi treats Bluetooth. For me their Bluetooth implementation is excellent enough for the portable and casual use.
    Last edited: Oct 15, 2019
    ceeloChamp likes this.
  15. ceeloChamp
    Thanks for the quick response man, I think I'll pull the trigger and get the xDSD!
    RockStar2005 likes this.
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