HiBy RS6

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  • HiBy RS6
  • HiBy RS6
  • HiBy RS6
  • HiBy RS6
  • HiBy RS6
  • HiBy RS6
  • HiBy RS6

HiBy RS6

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Qualcomm Snapdragon 660 | Large 5'' 1080p display | Open Android 9 OS | Direct Transport Architecture (systemwide bitperfect audio) | USB DTA (bitperfect USB audio) | 16x MQA unfolding | 3.5mm & 4.4mm dual headphone ports | HiByLink | 2.4G & 5G dual band WiFi | Bluetooth 5

Android Lossless Digital Music Player

Dual ES9038Q2M, Snapdragon 660 SoC, 5.0'' 1080P large hi-res display, Open Android 9, MQA 16x unfolding, DSD512, 4GB RAM + 64GB storage

Sound of Harmony

Delivers a balanced yet inspiring audio performance in bold, muscular visual fashion, while providing a silky smooth and snappy user interface.

A classic revamped

The R6 redesigned with the new R series design language—bold, muscular straight lines.

Japanese Alps rotary encoder

Japanese Alps rotary encoder for smooth volume adjustments.

Fast and mature SoC

Utilizing an upgraded Snapdragon 660 SoC, the R6 has speed and stability in spades, as can be expected when combined with the mature Android HiBy OS.
4nm LPP process; class-leading 8-core Kryo 260 architecture; speeds up to 2.2GHz; Adreno 512 GPU. 4GB RAM + 64GB storage + up to 2TB storage expansion via micro SD card.

Dual ES9038Q2M

Upgraded to dual ES9038Q2M with native support for DSD512, 32bit / 768kHz, both DACs in operation for both SE and balanced output! Utilizes current-mode output for even better noise rejection—for the cleanest backgrounds to your pure listening enjoyment.

Dual crystal oscillators

High-accuracy, low-phase-noise crystal oscillators dedicated to 45.1584and 49.152MHz, for flawless low-jitter performance for music at any sample rate.

All new power supply circuit design

Line and amplification stages driven by two independent isolated power supplies for cleaner, more powerful dynamics.

Audio circuit design

OPA 1612 as the line stages, coupled with low-ESR Panasonic POSCAPs and pro-audio grade Elna caps for a balanced yet inspiring audio performance that easily handles all music genres.

Multiple audio outputs

Both 3.5mm SE and 4.4mm balanced ports can act both as line out and headphone outputs. Drive headphones directly, drive a headphone amp, drive an outboard DAC… the sky's the limit.

1080p large hi-res display

A graphical performance as finely detailed and colour-accurate as the audio! 5.0” Corning Gorilla glass; 1920x1080 resolution; 443ppi; 16:9; oleophobic-coated. Supports advanced user-friendly operations such as tap-to-wake, triple-finger-downswipe to screencap.

HiBy OS updated to Android 9

HiBy OS is HiBy’s in-house developed rebuild of the Android system architecture, optimized for bit-perfect audio, unlike stock Android. Now updated to Android 9, supports the R6 in all desired audio I/O roles such as USB audio in / out, Bluetooth audio in / out simultaneously for unlimited flexibility.

Systemwide Direct Transport Audio Architecture

Bypasses Android's sample rate conversions at the system level for bit-perfect audio output.

MQA (Master Quality Authenticated) rendering to 16x

HiBy R6 includes MQA technology, which enables you to play back MQA audio files and streams, delivering the sound of the original master recording. MQA’ or ‘MQA Studio’ indicates that the product is decoding and playing an MQA stream or file, and denotes provenance to ensure that the sound is identical to that of the source material. ‘MQA Studio’ indicates it is playing an MQA Studio file, which has either been approved in the studio by the artist/producer or has been verified by the copyright owner.


Install the HiByMusic app on your Android or iOS smartphone and you can control the R6 from afar using WiFi or Bluetooth, for browsing, playing, skipping tracks, adjusting volume, etc.

MSEB Systemwide MSEB tuning

The MageSound Eight-Ball (MSEB) is HiBy's in-house researched sound tuning algorithm for adjusting desired audio qualities such as warmth, note thickness, vocal positioning, etc. directly instead of splitting the audio up into numbered frequencies. On the R6 it is available as a systemwide module for effecting all audio played on the device.*

*other than MQA, which MQA prohibits from modifying. 

Hi-res Bluetooth codecs

Sporting Bluetooth 5.0, the HiBy R6 supports Bluetooth audio in both input and output directions, with advanced codecs such as UAT, LDAC, aptX, aptX HD, AAC, SBC, etc.

Effortless connectivity

Strong 2.4GHz and 5GHz signals for fast, stable connection online to get your favourite music.

Wireless control

Supports DLNA and AirPlay* remote playback and music file transfer via WiFi.

* Install a third-party Airplay receiver app that can receive Airplay from iDevices.

Playtime for all time

Up to 8.5 hours (balanced ) or 10 hours (SE) continuous play time. Up to 25 days standby time.

USB3.1 / Type-C

Faster data transfer, QC3.0 fast charging, supports coaxial digital output.

Look at me


ModelNew HiBy R6
Operating systemAndroid 9.0
SoCSnapdragon 660
CPU architecture8x Kryo 260 cores
CPU speed2.2 GHz
GPUAdreno 512
DACES9038Q2M x 2
WiFiSupports 2.4GHz, 5GHz
BluetoothBluetooth 5.0
Display size4.97 inches
Display colour16.8 million colours True Colour
Display architectureIPS
Density443 PPI
Internal storage64GB
External storageUp tp 2TB + via 1 micro SD card
Colour choicesSilver / black
Body materialAluminium alloy
Dimensions130*73*15 mm
Power source5V⎓0.5A / 9V⎓2A
Battery size4500mAh
Charging timeAbout 3 hours
Firmware upgradesOTA (over-the-air) online updates
Font sizeAdjustable
APP third party applicationsUnlimited installation


ModelR6R6 ProNew R6
DACES9028Q2M x 2ES9028Q2M x 2ES9038Q2M x 2
Operating systemAndroid 6.0/8.1Android 6.0/8.1Android 9.0
SoCSnapdragon 425Snapdragon 425Snapdragon 660
Crystal oscillators22.579MHz, 24.576MHz45.158MHz, 49.152MHz45.158MHz, 49.152MHz
Op ampOPA1612 x 3MUSE8920 x 4OPA1612 x 4
Headphone ampTPA6120A2 x 2SSM6322 x 2SSM6322 x 2
PMC & DSD supportPCM384kHz/32Bit, DSD256PCM384kHz/32Bit, DSD256PCM768kHz/32Bit, DSD512
Output power (32Ω)3.5mm PO: 120mW
2.5mm BAL: 300mW
3.5mm PO: 245mW
4.4mm BAL: 750mW
3.5mm PO: 245mW
4.4mm BAL: 750mW
Output modeVoltage-mode outputCurrent-mode outputCurrent-mode output
Independent isolated power supplies
Output ports3.5mm PO, 2.5mm BAL, 3.5mm LO/COAX (share)3.5mm PO, 4.4mm BAL, 3.5mm LO/COAX (share)4 ports: 3.5mm PO, 3.5mm LO, 4.4mm BAL, 4.4mm LO
Display4.2'' 768p4.2'' 768p5.0'' 1080p
Bluetooth codecsSupports two-way Bluetooth
Bluetooth input: SBC, AAC, LDAC, UAT  
Bluetooth output: SBC, AAC, aptX, aptX HD, LDAC, UAT
Supports two-way Bluetooth
Bluetooth input: SBC, AAC, LDAC, UAT  
Bluetooth output: SBC, AAC, aptX, aptX HD, LDAC, UAT
Supports two-way Bluetooth
Bluetooth input: SBC, AAC, LDAC, UAT  
Bluetooth output: SBC, AAC, aptX, aptX HD, LDAC, UAT
WiFiSupports 2.4GHz, 5GHz
Supports 2.4GHz, 5GHzSupports 2.4GHz, 5GHz
AntennaInternal FPCInternal FPCExternal metal antenna
Playtime12 hours (SE) or 7 hours (BAL)12 hours (SE) or 8 hours (BAL)10 hours (SE) or 8.5 hours (BAL)
WeightAluminum alloy: 198g
Stainless steel: 275g
Aluminum alloy: 198g
Stainless steel: 280g
Aluminum alloy: 235g
Quick chargeQC3.0QC3.0QC3.0

Seek Splendid Sound

Darwin architecture | Adjustable FIR filter | R2R technology | R2R linearity compensation | DSD decoding | Optional Oversampling filter / NOS | Dedicated audio crystal oscillator

Featured In


"The HiBy RS6 is a deeply engaging and well-thought-out initial foray into the world of portable R2R Android DAPs... The ground-up conceptualization of Darwin and what it means to the portable audio user is probably the most salient aspect of all its features with that blazingly fast OS workflow already a staple of previous HiBy product releases. "

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Twister 6

"When I started testing RS6, I didn’t appreciate at first the power of Darwin architecture until fw 1.20 update and addition of new IEM presets... I realized how effectively and naturally this DAP could be finetuned without a need of EQ or MSEB effects... Also, RS6 is one of the fastest DAPs I have tested to date."

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"Hiby’s RS6 borrows a lot of technology from said D/A converters, choosing a higher engagement factor, flow and natural textures above anything else. If there’s a DAP that tries to elevate your mood and cover your body with goose bumps, then Hiby’s RS6 is definitely that one."

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@gLer - Headphoneus Supremus

"A great DAP is the sum of all its parts – features, performance, stability, design, UX and sound quality. In my experience, few other DAPs comes close to the RS6’s combination of features, flexibility and sound quality, and no other DAP offers all of that plus R2R in one sweet and shiny copper package. Highly recommended."

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"The HiBy RS6 is a wonderfully designed, elegant player that provides many features in a complete package. You have streaming, advanced DSP settings, DTA, Hi-Res Bluetooth, micro SD support, a very fast CPU with a clean UI, 4.4mm BAL and 3.5mm SE outputs in a very rigid copper chassis. This is a dream DAP when it comes to online music streaming. I appreciate HiBy’s first effort on their new, in-house “Darwin” R2R Architecture. I’m sure they can build upon this and reach greater heights. "

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Android Lossless Digital Music Player

Qualcomm Snapdragon 660 | Large 5'' 1080p display | Open Android 9 OS | Direct Transport Architecture | USB DTA (bitperfect USB audio) | 16x MQA unfolding | 3.5mm & 4.4mm dual headphone ports | HiByLink | 2.4G & 5G dual band WiFi | Bluetooth 5

The Darwin Architecture

The Darwin architecture is HiBy’s in-house developed all new hi-res digital signal processing architecture. In a breakthrough evolution of traditional R2R architecture, the system includes resistor ladder linearity compensation, and for the first time includes advanced functions such as linear FIR filter, nonlinear harmonics control, switchable oversampling / NOS, and DSD bypass on portable equipment. The end-to- end flexible architecture is fully configurable, creating endless possibilities for future upgrades and endless evolution.

256-tap adjustable FIR filter

The Darwin architecture provides for up to 16x oversampling (and also NOS), with several filter types selectable to preserve linear phase and reproduce the original sound; also customizable to adapt to different earphone characteristics, ensuring adaptability to different earphones of different designs and driver configurations.

Complete R2R-based amplification stage

Full of musicality, vibrant and natural, the R2R-based amplification stage brings music alive and performers onstage in an immersive experience.

Switchable oversampling / NOS

NOS mode bypasses oversampling and antialiasing, responding instantaneously to transients and stairsteps, converting to analog in the most raw and direct manner possible; Oversampling mode removes aliasing artifacts, enables all functions of the Darwin architecture, realizes personalized adjustments of sound signature, adapting to different earphones;

DSD bypass function

With separate LPFs for PCM and DSD, native DSD decoding on an R2R system is no longer an oxymoron. The DSD specific LPF effectively reduces HF noise caused by the delta-sigma modulation process, optimizing DSD audio reproduction.

Highly accurate audio crystal oscillators

The two crystal oscillators for the 44.1xkHz and 48xkHz families are clocked at 45.158MHz and 49.152MHz respectively with subatomic precision down to -140dBc/Hz @1kHz, DSD256 enabling 768kHz and DSD256 decoding at down to 0.003% / -115dB THD.

Earphone-specific tuning

We have already collaborated with 10 professional HiFi brands in and out of China, getting each brand’s sound tuning professional to tune the Darwin architecture’s various hardware parameters to their earphones’ characteristics to produce tailor-made tunings for each brand, all available at a touch of the screen; more to come…

MQA 16x unfolding

The strong processing power of the SoC makes an unprecedented 16x unfolding of MQA data possible, reproducing the original master tape from ever smaller source files!

MQA is an award-winning technology that captures and reproduces the sound of the original studio master in a file that’s small enough to stream and download. HiBy is collaborating with MQA to deliver the true original sound quality to listeners.

Mature and high-performance SoC

Utilizing the highly mature and high performing Snapdragon 660, coupled with high speed LPDDR4 RAM and eMMC storage, enabling high demand multithreaded computations (audio or otherwise) to be performed in record time.

14nm LPP process, 8-core Kryo 260 architecture, 2.2GHz, Adreno 512 GPU 4GB LPDDR4 RAM+64GB storage+micro SD slot

Grand amplification scheme

To top it all off, a discrete current-mode amplification scheme is implemented via 1x OPA1642 and 2x OPA1612, supplying abundant current for the output stage to realize stellar dynamic and transient response. This is then coupled to 4 flagship-class OPA1622 opamps for 8 independent channels of headphone amplifications ganged 2x2 parallel; each channel is a combination of voltage and current amplification stages. This is all controlled by a professional NJW1195A digital volume controller for optimal control and ideal circuit dynamics at all times.

HiBy OS the everlasting god of audio!

The HiBy OS is HiBy’s in-house developed system architecture for HiFi audio, optimized from the ground up for audio processing. Now adapted to the Android 9 OS, it opens the system up for free installation of any Android app, and also supports advanced audio functions such as USB audio input and output, wireless audio input and output and systemwide audio effects.

Systemwide Direct Transport Architecture now including USB

The Direct Transport Architecture has always been known for defeating the originally mandatory sample rate conversion of android for the onboard headphone output. Now, DTA can also bypass sample rate conversion for third party apps even when using USB audio, achieving bitperfect output from almost any app, to anywhere.

HiByLink support

The convenient HiByLink function allows you to control your RS6 from the HiByMusic app on your smartphone, remotely controlling playback, volume control, playlist management etc.!

It’s a wireless world

Supporting both Bluetooth audio reception (to wired earphones or USB output) and Bluetooth audio transmission (to Bluetooth earphones) at the Bluetooth 5 standard level, and supporting a plethora of Bluetooth codecs including UAT, LDAC, aptX, aptX HD, AAC, SBC etc. Highly stable 2.4GHz and 5GHz WiFi for reliable, ever-present online music access. Supporting DLNA / AirPlay / WiFi audio transfer.

Play time

With its 4500mAh high-capacity battery, the RS6 is good for up to 8.5 hour of continuous play time and 25-day of standby time. Supporting Quick Charge QC3.0 for charging power of up to 18W.


Mature, familiar external design. All copper shell, champagne gold colour available.

3.5mm & 4.4mm

3.5mm and 4.4mm, headphone and line outs, all independent.

Hi-res large 5” 1080p display

5.0”, Corning gorillia glass, 1920x1080 resolution, 443ppi, 16;9, oleophobic.

List of included items

① Package box
② Brown leather case
③ HiBy RS6
④ Screen protector
⑤ USB Type C cable
⑥ USB Type C - RCA Digital Coaxial Cable

Look at me

* The green leather is not included in the package


ModelHiBy RS6
Operating systemAndroid 9.0
SoC modelSnapdragon 660
CPU architecture8-core Kryo 260
CPU frequency2.2 GHz
GPUAdreno 512
DACDarwin architecture
WiFiSupports 2.4 and 5GHz
BluetoothBluetooth 5.0
Display size4.97”
Display colour16.8 million colours 
Display typeIPS
Pixel density443 PPI
Internal storage64GB
Micro SD<2TB
ColourChampagne gold
Body materialPure copper
Dimensions130*73*15 mm
WeightApprox. 315g
Charging power source5V⎓0.5A / 9V⎓2A
Battery capacity4500mAh
Charging timeApprox 3 hours (0-100%)
Firmware upgradeOver-the-air
Font sizeAdjustable
APP third party appsUnlimited installation

Audio specifications

HiBy RS6 headphone out specifications

Output port3.5mm PO headphone out @32Ω4.4mm PO headphone out @32Ω
Frequency response (to -3dB)20-45kHz20-45kHz
Output voltage2.4 Vrms4.7 Vrms
Output power180 mW690 mW
Crosstalk rejection72 dB98 dB
S/N ratio114 dB114 dB
 Dynamic range95 dB95 dB
Output impedance0.4Ω0.8Ω

HiBy RS6 Line out specifications

Output port3.5mm LO line out @10kΩ4.4mm LO line out @10kΩ
Frequency response (to -3dB)20-45kHz20-45kHz
Output voltage2 Vrms4Vrms
Crosstalk rejection102 dB104 dB
S/N ratio115 dB115 dB
Output impedance10 kΩ10 kΩ