The product was provided to me free of charge for the review purpose in exchange for my honest opinion. The review was originally posted on my
site, and now I would like to share it with my readers on Head-fi.
Manufacturer website:
Hiby. Could be ordered directly or from
MusicTeck.
Intro.
It used to be easy grouping DAPs into entry, mid-fi, and summit-fi categories. Today, we have mid-fi priced DAPs approaching flagship level of performance, and I also see more entry level DAPs crossing the mid-fi line. These feature-packed entry level DAPs have been very popular with the crowd of active lifestyle audio enthusiasts who value compact size and wireless Bluetooth performance, and not as picky about the sound quality.
Introduced in the spring of last year through crowdfunding campaign, the original R3 gained a lot of attention since it had a big enough display for easy viewing and navigation, and still a very compact and pocket friendly size, and even a balanced output. But one of the important features of R3 was a support of WiFi and built-in Tidal app for a portable streaming. Later, Hiby also added support of Qobuz, even so I still find people who are not aware of that.
With a recent release of R5 and the buzz around the upcoming R8 flagship, I think the release of R3 Pro flew under the radar. Perhaps, some assumed that “Pro” is a small upgrade, but I found it to be the opposite. After spending the last few weeks listening to R3 Pro on the go and using it to stream Qobuz, I think this little guy deserves more attention. So, let’s proceed with a review.
Unboxing and Accessories.
Arrived in a small compact black gift box with a white exterior sleeve, the unboxing experience of R3 Pro is very basic. There is no picture or any graphics on the front cover, and on the back, you will find only a very limited spec. With a sleeve off and a foam-lined box cover removed, R3 Pro is sitting securely in a foam cutout to make sure it arrives safely on your doorstep.
Underneath, you will find the accessories which include detailed user instructions, film and tempered glass screen protectors, quality usb-c data/charging cable, and a plastic back cover. An optional leather case is available for purchase; since this is a budget priced model, one wasn’t included.
The included snap-on back cover, which you can consider like a case, has a transparent frosted finish, better looking than R3 white cover, and still good enough to enhance the grip of this little DAP.
Design.
When it comes to R3 Pro exterior design, it is nearly identical to its R3 predecessor. We are talking about the same size of 82 x 61 x 13mm, and the same weight of about 95g. The front of the DAP is still occupied with the same 3.2” IPS touch display, and at the bottom you will find a spring-loaded micro-SD slot and USB-C port.
The left side still has the volume up/down button, and the right side has a power button at the top, LED light below it (indicating charging status and file format to distinguish lossy vs lossless), and a cluster of three transport control buttons (Play/Pause in the middle and Skip above and below it). At the top, you will find 3.5mm HO/LO port and 2.5mm HO balanced output.
The only visual change is a gold-plated ring around 2.5mm port.
All the changes are hidden under the hood.
Under the hood.
As I already mentioned, from outside you won’t find any changes, but inside it is a different story.
Probably the only thing that remained the same is Ingenic X1000E CPU, an ultra-low power consumption processor common to many entry-level DAPs. Now, starting with a DAC, Hiby implemented a dual CS43131, to replace R3’s ES9028Q2M. I’m sure it is one of the contributing factors in increase of the play time using its 1600mAh battery. The overall improvement of playtime was quite noticeable, in SE (3.5mm) going from 11hrs to 20hrs and in BAL (2.5mm) going from 9hrs to 16hrs. Of course, as you switch to high res lossless files, especially DSDs, and depending on the amount of screen time and volume level, the battery life will decrease.
Another noticeable change was Bluetooth 5.0 (from previous 4.2 in R3), and support of all the popular codecs, including UAT, LDAC, aptX, AAC, and SBC. Plus, you have to keep in mind that R3 Pro still support dual (2-way) Bluetooth, both as a transmitter for wireless headphones and speakers and as a receiver for wireless DAC/amp application. When it comes to WiFi, R3 supported only 2.4GHz band, while R3 Pro added 5GHz to help with wireless coverage and connections which includes DLNA, AirPlay, and support of built-in Tidal and Qobuz apps.
As it was already mentioned, both R3 and R3 Pro have 3.5mm SE and 2.5mm BAL headphone outputs. R3 Pro single ended output has a similar level of power as R3. But the balanced output went up from 112mW to 210mW with 32ohm load. I will cover more in sound analysis section, and yes, the higher output power level was noticeable.
As far as playback, R3 Pro supports majority of popular lossy and lossless formats up to a native DSD256 decoding and PCM playback of up to 32bit/384kHz, including FLAC, APE, WMA, WAV, AIFF, DSD IOS, DFF and OGG files. Also, very important to note that R3 Pro supports full hardware decoding of MQA which I confirmed with a few of my MQA FLAC test tracks.
Other features worth mentioning is WebRadio support, though you will have to do your own leg work to find available streaming stations and add it into a txt file to be stored into root directory and accessed from the Playlist. Another feature is E-Books, but it only works with txt files. For active lifestyle, Pedometer is included, though I didn’t find it to be very accurate. Last, but not least, when you are dealing with Hiby OS and Hiby Music app, MSEB sound-shaping effects are definitely worth checking out.
GUI.
By now you had to be living under a rock if you never heard of HibyMusic app. It’s a free app you can install on your phone or other Android based DAP. In R3 Pro, the app is the main GUI of the DAP, integrated into its OS. I’m sure many are familiar with the interface already, but for those who don’t, here is a recap.
The main interface is organized in a logical way where starting at the top you have icon-menu with Settings, Music file sorting/view, Favorites and Playlists, Tidal/Qobuz, and Main playback.
Settings menu has Update database (to scan for music on your card), Receive songs via Wi-Fi (provides URL to send files from another device connected on the same wi-fi), MSEB (10 sound shaping effects based around Parametric EQ, with a very effective finetuning to change the color of tonality, bass impact and articulation, vocals control and sibilance filtering, and airiness of the sound), EQ (10 band graphic EQ, with 8 genre specific presets, and a custom preset), E-Book (being able to load and to read E-books, though only in txt format), Pedometer (to allow recording your steps), Wireless setting (Bluetooth, Wi-Fi, DLNA, AirPlay, and HibyLink), Play setting (everything from play mode to output selection, DSD mode, resume play, gapless, crossfade, replay gain, balance, digital filter, and play through folders and albums), System setting (button operation, time setting and idle/sleep timer, battery percentage display, standby, in-line remote access, status LED, screen settings, factory reset, and fw update), and About.
Under Music file view, you can see all the tracks, select if you want to view specific folders on micro SD card or external usb-storage, and sort by Albums, Artists, and Genres. In Favorites menu you can view files tagged as favorite. In there, you can also see recently played songs. Then, view Playlist menu where you can create new, or save/load playlist, and access Custom Radio (need to have a separate text file with url links to internet radio stations). And last, but not least, view recently added.
Access to Tidal and Qobuz is definitely a unique feature of R3 Pro which makes it stand out from many other small DAPs. You have to press and hold the corresponding shortcut icon which brings up a choice of accessing Tidal or Qobuz. Please keep in mind, this is a custom app which only allows streaming, and not off-line storage. Since I only have Qobuz service, that’s the one I was testing. After you login once, R3 Pro remembers your login info, so you don’t have to enter it every time. Under Qobuz, you have Discover section with access to New Albums and New Playlists, access your Favorites where you can search by albums, artists, tracks, and playlists, and a separate Search.
In the Main playback screen, you can view the artwork of the song, if one is available. Also, you can see the track and the artist name, file info, “heart” icon to tag is a favorite, playback scroll bar to advance through the song and to check the track time, and at the bottom you have playback mode (loop, single song loop, random, and play all), playback navigation buttons with play/pause and skip, and access to pop-up menu with various options like add to playlist, EQ, view album, song properties, and being able to delete the song.
Also, worth mentioning, Notification bar at the top is visible from every screen, and it has lots of info with volume setting, current playback icon, time, wi-fi indicator, and battery with a percentage display (as enabled in settings). You also have access to shortcuts when you swipe up the screen which brings up BT toggle, WiFi toggle, gain select, replay gain setting, line out, and timer. Below it, you have a swipe bar to adjust brightness, volume, and a small window to control the playback of the song with play/pause/skip buttons and the name of the song.
Sound Analysis.
I analyzed R3 Pro sound using U18t IEM 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”, Ed Sheeran “Shape of you”, Counting Crows “Big yellow taxi”, Galantis “Hunter”, Alan Walker “Darkside”, Iggy Azalea “Black widow”, Indila “Boite en argent”, Robin Schultz “Oh child”, David Elias “Vision of her”, and Michael Jackson “Dirty Diana”. At the time of sound analysis, I had close to 100hrs between burn in and playback time.
I found R3 Pro to have a neutral sound signature with a more transparent and slightly more revealing tonality. In various pair up examples with IEMs and headphones, I found the sound of R3 Pro to have good dynamics (vertical expansion); the sound didn’t feel compressed or saturated. The soundstage expansion is also very wide, especially from BAL output, leading to a relatively accurate imaging and placement of sounds in space. I find layering and separation of sounds to be not bad at all, maybe not on the same level as their R6 Pro flagship, but closer to R5. Also, very important to me, I hear a black background with no hissing, even with sensitive IEMs from high power balanced output.
As far as the sound difference between 3.5mm and 2.5mm ports, the one that stands out to my ears is the soundstage width, with a balanced port having a noticeably wider expansion. I can also hear a little more transparency in mids (less coloring) and slightly blacker background listening from a balanced port. This was tested with the same pair of IEMs, playing the same track, and volume matched between SE and BAL ports.
Of course, the sound will depend on pair up synergy and the tuning of IEMs and headphones you are using with R3 Pro. Thus, to further analyze the performance of this DAP, I will continue with Pair up examples and Comparison to other DAPs in the follow up sections of the review.
Pair up.
In the below examples, I tried a variety of different IEMs and full-size headphones to see how well they pair up with R3 Pro. Volume (v), Gain (HG or LG), and Single Ended (SE) or Balanced (BAL) were noted as well.
64 Audio U18t (v29, LG, BAL) - wide soundstage, a nicely balanced signature with a more natural revealing tonality. I can hear a solid black background, and no hissing what so ever. Actually, a pretty good pair up on the go.
Empire Ears Legend X (v32, LG, BAL) - wide/deep soundstage, a typical L-shaped signature with a booming bass, a little more overpowering which should put a smile on basshead audiophiles, but once you go to MSEB and make Bass Extension about “-20” light, the bass is reduced to a more enjoyable level with signature being more balanced. Of course, this is a matter of a personal sound preference, but it also shows that LX responds great to MSEB effects.
Campfire Audio Solaris (v25, LG, BAL) - wide soundstage, crisp airy sound with a more revealing tonality. Also, I hear a fast, articulate bass punch, leaner detailed mids/vocals, and crisp airy treble. But the most important part - zero hissing. Hiss-free pair up with sensitive iems, like Solaris and Andro, is an important requirement for many audiophiles, and R3 Pro with its black background passes this test without a problem.
Audio-Technica ATH-R70x (v64, HG, SE) - no issues driving these 470ohm open back large dynamic driver headphones even from single ended output. The sound was very open, natural, and detailed. It was more on a smoother side, so perhaps it wasn’t driven to its full potential. But still, this was surprisingly a very enjoyable pair up, even with extra headroom in volume.
Meze Empyrean (v46, HG, BAL) - no issues driving these planar cans either, except tonality was a bit thinner, lacking some body and having a little more relaxed bass punch, so not exactly driven to their full potential either. But again, not a bad pair up at all if you want a portable streaming source on the go – the sound was still quite enjoyable.
Comparison.
I was using U18t in this comparison, volume matched in every case, and the focus was mostly on sound performance, though I added a few additional thoughts to cover other features. Each of these DAPs has their own Pros/Cons when it comes to features, all of which should be taken into consideration depending on your priorities and personal preference. Also, I will start off with R3 Pro vs R3 comparison in more details, and then continue with other DAPs.
R3 Pro vs R3 - Both DAPs have a more neutral, natural sound, but there are some differences. Pro has a little wider soundstage, while the perception of the soundstage depth is the same. Pro has a stronger and faster bass impact, making the bass sound tighter and more articulate. Also, I hear Pro having a little more revealing upper mids/vocals, while treble is identical to R3. In comparison, R3 bass is a little more neutral and slightly more relaxed, and mids sound a little smoother. Another difference is Pro having better dynamics, with the sound having some improvements in vertical expansion of peaks, giving it more room to breathe, while R3 feels a bit more compressed. It's not a huge difference, but after hours of A/B comparison with resolving IEMs, like U18t, I can hear the difference in a blind test (which I actually did multiple times).
Other differences and similarities worth mentioning: there is a noticeable difference in power where I had Pro about 8-9 clicks lower in volume when compared to R3, both playing the same track, volume matched. Battery drain difference is also noticeable since Pro last longer. You will also spot different digital filters, associated with corresponding DACs between Pro and original version. A cosmetic difference where Pro has a golden plate outside of its 2.5mm BAL socket while R3 is plastic. Similarities here are mostly based around physical dimension/appearance and Hiby OS where both support Tidal and Qobuz, have Pedometer, MSEB, and E-books in txt format.
Other DAP comparisons.
R3 Pro vs theBit Opus #1S - a lot of similarities here, from nearly the same soundstage expansion to overall sound signature and tonality. The only noticeable difference I hear in this comparison is with R3 Pro bass having a little more sub-bass rumble and stronger/faster mid-bass punch which I found when switching back’n’forth between these DAPs, volume matched and using U18t for monitoring. In terms of overall functionality, Opus#1 is playback only device with no access to apps, and without BT, though it does have internal storage.
R3 Pro vs iBasso DX120 - R3 Pro soundstage has more width in this comparison. With tonality, R3 is more neutral and more transparent, while DX120 is a little warmer and with more body in sound. Also, DX120 bass punches even stronger, being a little more elevated. Another noticeable difference is with sensitive IEMs where DX120 has a lot more background hissing, while R3 Pro is quiet. In terms of functionality, DX120 is a playback only device with no access to apps or BT, but it does have dual micro SD card.
R3 Pro vs Shanling M3s - this comparison is very similar to DX120. R3 Pro soundstage has more width. And M3s tonality is a little warmer and with more body, while R3 Pro is more neutral and more transparent in comparison. Also, M3s bass has a stronger punch, elevated in quantity. Lack of touch screen interface made M3s operation a little more frustrating in this comparison. Also, don’t expect any streaming apps with M3s. I know M2x would have been a perfect candidate for R3 Pro comparison, but I never tried it.
R3 Pro vs Hidizs AP80 - R3 Pro soundstage is a little wider in this comparison. With tonality, AP80 Copper is warmer and with more bass impact, while R3 Pro is more neutral and more transparent in comparison. Compared to AP80 SS, I also hear R3 Pro to have a wider soundstage, but tonality is closer to R3 Pro, being more neutral, more transparent, a little brighter. In R3 Pro to AP80 SS comparison, I hear Pro having an improved technical performance with better layering/separation of the sounds. While both have nearly identical Hiby OS, R3 Pro big advantage is Wifi and Tidal/Qobuz support.
R3 Pro vs Cayin N3 – in this comparison N3 really shows its age. R3 Pro soundstage is noticeably wider. R3 Pro tonality is more neutral, more transparent, with the sound being more layered, better separated. N3 is a lot warmer, more congested, and not as dynamic. Aside from lack of touch screen interface and any streaming access, overall sound performance of N3 in this comparison takes a noticeable step back.
R3 Pro vs Hiby R5 – I actually found R3 Pro pushing soundstage wider in comparison to its bigger brother. In terms of the sound, R5 is a little bit warmer with a fuller body, while R3 Pro is a little more neutral and more transparent in a relative comparison. Bass response here is similar. Technically, R5 has some advantage with improved imaging and layering/separation of the sounds, but it’s by a small margin. Of course, R5 has a lot of other advantage such full Android OS, access to Google Play and all the apps flying under its fast processor.
Other Wired/Wireless connections.
In this section of the review I will go over various wired and wireless connections I tested and verified with R3 Pro.
USB DAC.
I tested USB DAC functionality with my T480s laptop where R3 Pro was easily recognized by Win 10Pro, and I was able to control the volume from both my laptop and DAP. But I also noticed a difference in sound where the same track being played directly from R3 Pro had a wider soundstage and better dynamics, while using R3 Pro as
USB DAC from laptop had a narrower staging width and slightly inferior vertical dynamics.
Wireless Bluetooth.
With bi-directional 2-way Bluetooth support, you can pair up R3 Pro with external wireless headphones or speakers, or use R3 Pro as Bluetooth wireless receiver, turning it into a BT DAC.
I tested BT Rx with my Galaxy S9 phone, enabled w/LDAC codec. Upon successful pair up, the correct codec was shown on R3 Pro. Also, with LDAC, the sound from S9 through R3 Pro as a wireless BT DAC was identical to using R3 Pro directly with the same pair of IEMs and playing the same test track.
For my BT Tx test, I paired R3 Pro with Sennheiser HD1 M2 IEBT neckband IEMs. The connection worked in open space, 45ft away from R3 Pro. The sound was a typical IEBT sound sig, maybe just a little more neutral and slightly brighter. I know that in theory under the same codec a sound should be the same, but it probably varies depending on BT chipset since the same pair up with my Galaxy S9 yielded a little more neutral sound.
Line Out (LO).
In this test I was using portable FiiO E12A amp, which I usually find more neutral. With this external AMP the sound is a little brighter while playing the same song directly from R3 Pro sounds a bit warmer, smoother. To me this indicates that R3 Pro internal headphone amp is possibly coloring the sound a bit.
Digital Out (USB-C).
In this test I was using R3 Pro as a digital source, driving external DAC/amp from its USB-C port. I tested R3 Pro with iBasso DC01, and found it to pair up good, though you do need to keep the volume lower since DC01 output is high. Also, the sound was a little brighter in comparison to being connected directly with the same IEM to R3 Pro. Next, I tested R3 Pro with iFi Micro iDSD BL. It also connected without a problem, and I found the sound to be more transparent and better resolving in comparison to direct connection of the same IEM to R3 Pro.
Conclusion.
I keep repeating myself like a broken record that audio market, both when it comes to IEMs and DAPs, is saturated. Thus, when people see a new model release with “Pro” suffix, their attention fades away because they assume it’s a small upgrade. In case of going from R3 to R3 Pro, the only thing that’s small is the same compact size and exterior look of this DAP. With so many changes under the hood, R3 Pro version feels like R3 on steroids.
Besides updated dual DAC, the playtime nearly doubled, Bluetooth updated to 5.0 and still supports 2-way LDAC, WiFi now supports dual 2.4GHz and 5GHz bands, and the power of 2.5mm BAL output doubled to 210mW. Plus, you still get native support of DSD256, full MQA decoding, MSEB sound shaping effects, WebRadio, and both Tidal and Qobuz streaming. It will not be easy to find another DAP with all these features under $200.