Hiby R6 Pro

Under the hood.

A lot of the internal R6Pro design remained the same as in R6.  It still uses Snapdragon 425 SoC Processor (clocked at 1.4GHz) and 3GB of DDR3 RAM to deliver a fast Android 8.1 experience.  Internal storage is still 32GB, and you have a single uSD expansion to support the latest max capacity cards, currently at 512GB.  Plus, wifi streaming and LAN support expands the playback beyond the local storage.

Audio processing is still under control of dual ESS ES9028Q2M DAC, but the amp section has been revamped to feature 4x Muses 8920 and 2x SSM6322.  As you can expect, different amp chips will yield a different sound coloring which I’m gonna cover in sound analysis section next.  And with new amp section, the output power went up significantly with 3.5mm Single Ended: 245mW @32ohm load and 4.4mm Balanced: 750mW @32ohm load.  Also, output impedance went down from 10 ohm to 0.28 ohm!

All major hi-res lossless formats are supported so you are covered to play FLAC, APE, WMA, WAV, ALAC, Apple LOSSLESS, DSF, DSDIFF where you have native support/decoding of DSD 128/256 and PCM up to 32bit/384kHz, as well as support of ISO DSD.  Plus, support of lossy formats, such as MP3, AAC, WMA, OGG.  And as usual, Hiby modified OS is able to bypass Android sample-rate conversion to ensure bit-perfect output from any app.

You will also find the same 4.2-inch touch screen IPS display (high-density 300 dpi) with resolution of 768×1280, supporting 16 million colors, and wide viewing angle.  Furthermore, for a wireless connection, you have dual-band (2.4G and 5G) WiFi radio, and Bluetooth 4.x supporting aptX and LDAC.

Plus, the same battery with 4000 mAh capacity and support for quick charging (QC 3.0) standard (140min to full charge), where you can use either DC 5V/2.5A or 9V/1.5A.  While Hiby mentioned about 12hrs battery life which is impressive for high performance touch screen Android DAP, in a real life usage with a mix of mp3 and flac files, balanced output, and using IEMs, I was able to get closer to 10hrs of playback.  With DSD, as expected, the playback time goes down due to a higher battery drain.


Sound analysis.

I analyzed R6Pro sound with U18t while playing a variety of my favorite test tracks, such as Agnes Obel “The curse”, Sandro Cavazza “So much better” (Avicii remix), C-Bool “Never go away”, Ariana Grande “Break up with your girlfriend”, Ed Sheeran “Shape of you”, Galantis “Hunter”, Iggy Azalea “Black widow”, Indila “Boite en argent”, Robin Schultz “Oh child”, David Elias “Vision of her”, and Michael Jackson “Dirty Diana”.

Since I had R6Pro in my constant review rotation for the last few months, it has easily over 100hrs of playback time.  And in my usual disclaimer, DAP sound analysis could be a bit tricky because you are describing the synergy of the DAP with headphones you are listening to.  It’s easy to fall into a trap of describing the headphone signature, thus I usually go through a number of headphones, from neutral to more revealing, to find common sound characteristics relative to the source, rather than headphones.

While I found the original R6 to be a neutral player with a tilt toward a brighter more revealing side, in comparison R6Pro has a fuller body with a more natural sound tuning.  R6 has a more transparent, less colored, more revealing leaner reference sound, while in contrast R6Pro extends the bass with a deeper rumble and more analog texture, adds more body to the lower mids which is noticeable especially in vocals being more organic and natural, and takes a bit of sparkle off the treble.

Overall, the technical sound performance is very close, though I felt that the original R6 had slightly better layering and separation, perhaps due to more transparency and more airy treble which creates a sense of more air between the layers of the sound.  Also keep in mind that R6Pro is a lot more powerful and has a lower output impedance.  But with higher power you have to be aware that some sensitive IEMs will exhibit more hissing, requiring you to switch to low gain or look into iEMatch again.  There is always a trade off with higher power, and this is one of those cases.

Also, I noticed an occasional EMI interference when WiFi and Bluetooth were on, just an intermittent crackle and not with every IEM/cable.  These artifacts were more noticeable at very low volume level, while at normal listening level those were hard to hear.


Page 3 – Pair up and Conclusion.

9 thoughts on “Hiby R6 Pro

  1. Hi,
    I picked up an R5, it sounds decent, but is small, hard to read/hard to accurately type anything on it. How is the sound on the R6 Pro compared to the R5? I’ll use it as a source for iem’s shure se530 and noble kaiser 10, for an integrated amp, car line out, bluetooth occasionally. Not able to get Hiby link on an iPhone 11 to recognize the Hiby R5 – even though they are BT connected?


  2. I tried to purchase an R6 Pro from Amazon.co.uk, as their only UK dealer AdvancedMP3Players.co.uk have stopped stocking their item as they said they are an awkward company to deal with. I have emails to that effect. Anyway, Hiby’s store on Amazon.co.uk doesn’t take the UK VAT off and as a resident of Jersey, Channel Islands, I’m not legally obliged to pay UK VAT. When I told Hiby this on their Facebook page, I was told by one of their representatives. that if I didn’t want to pay the same as everyone else, I should go elsewhere! So I’ll never try to purchase a Hiby product ever again and I’ll get a Fiio M11 or Pro.


  3. Thank you Twister6, this helped with the R5 Hiby Link! I had to update the firmware also, then it worked 🙂
    The 3 posts occurred when I signed in via wordpress twice, my posts “disappeared”, so I finally just used another email, which seems to work better for one simply posting here.
    I returned the R5, and picked up an R6 Pro Aluminum. Much easier for me to type accurately, still a fairly compact form factor, and the sound is substantially better – brings life to the SE530’s – it’s early hours on this, a more rewarding listen!
    Thanks for your help!


  4. Hi,
    I was wondering if you could shed some light on this?
    While playing out via Hiby Music App to a chord mojo:

    If using the R6 Pro as a digital source for external dacs, what are the output rates for spdif coaxial and usb?

    I’m not getting a lock out to my mojo via coax/spdif above 96khz. So any file above 96khz won’t lock or play via spdif.

    Usb out seems to sync at 96 kHz to mojo regardless of file rate, and while playing a 192khz file the R6 status led is blue indicating the file seems to be playing at between 32-48khz?
    Is this all normal?



      1. According to Hiby, Joe Blogs, it is specced to output up to 192k via spdif, however mine is “underperforming”, and even a second example does the same thing… Spdif out to the mojo is much clearer than usb, and the mojo is the only dac of three I have that locks at all with this R6 Pro. My mojo locks and works fine with spdif output of my computer via Audiophellio 2 up to 192k files I have.
        Any other suggestions of Dap’s that sound very good, and are also a good reliable transport? I just want one the works like it should!


      2. sorry mate, I don’t use any external dac/amps with DAPs, only micro iDSD BL on rare occasions, and it doesn’t even have indicator of the rate. So, I honestly never pay attention to it. Maybe asks others on head-fi in Mojo thread what sources they use, what files they play, and if they have issues with 192k files over spdif?


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