Hiby RS6 Gray Edition - High-End R2R DAP
Hiby RS6 Gray Edition - High-End R2R DAP
Hiby RS6 Gray Edition - High-End R2R DAP
Hiby RS6 Gray Edition - High-End R2R DAP
Hiby RS6 Gray Edition - High-End R2R DAP
Hiby RS6 Gray Edition - High-End R2R DAP
Hiby RS6 Gray Edition - High-End R2R DAP
Hiby RS6 Gray Edition - High-End R2R DAP
Hiby RS6 Gray Edition - High-End R2R DAP
Hiby RS6 Gray Edition - High-End R2R DAP

Hiby RS6 Gray Edition - High-End R2R DAP

CHF 1,499.00

Pre-order. Available around the end of February

Test products at home - free of charge and for up to one week

The sound of harmony

With its unique R2R DAC architecture, the new HiBy RS6 offers a uniquely musical, almost analogue sound experience, while offering a modern and fast user interface.

Hiby RS6


Sound News

"RS6 performed above my expectations with every IEM and headphone I had at my disposal, there isn't a more customizable DAP today and that's why I'm going to award it with our prestigious Gold Award. Congratulations to the team and I'm looking forward to what's coming next!"

Hiby RS6 Review – Portable R-2R Goodness

Headfonics Audio Reviews

"Kudos to HiBy for bringing out an R2R DAP on the Android platform. The RS6 presents a nice alternative to the Cayin R01/N6ii and a different sound signature also which can only benefit the potential buyer in the end. Definitely, a worthy introduction for those analog lovers whose wallets simply will not go as deep for the excellent LP P6 Pro."

Hiby RS6

HiBy RS6 Review | Headfonics Audio Reviews

Headfonia Reviews - Quality audio reviews

"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. What more can we ask for?"

HiBy RS6 Review - Headfonia Reviews


"R-2R discrete resistor DAC, natural organic tonality with intimate sound presentation, advanced DARWIN architecture, custom IEM presets, super-fast Android performance, 5” HD display, MQA 16x support, system wide MSEB."

Hiby RS6 – Twister6 Reviews


The Darwin Architecture

The Darwin architecture is a completely new high-resolution digital signal processing architecture developed by HiBy itself. In a breakthrough evolution of the traditional R2R architecture, the system includes linearity compensation with resistor ladders and, for the first time, advanced features such as linear FIR filters, nonlinear harmonic control, switchable oversampling/NOS and DSD bypass for portable devices. The flexible end-to-end architecture is fully configurable, allowing endless possibilities for future upgrades and endless evolution.

256-way adjustable FIR filter

Darwin architecture allows up to 16x oversampling (and also NOS), with different filter types to choose from to preserve linear phase and reproduce the original sound; moreover, it is adjustable to adapt to different earphone characteristics, ensuring adaptability to different earphone designs and driver configurations.

Fully R2R-based audio architecture

Full of musicality, vibrant and natural, the R2R-based amplifier stage brings the music to life and the performers on stage to an immersive experience.

Switchable oversampling / NOS

NOS mode bypasses oversampling and antialiasing, reacts instantly to transients and stairsteps, and converts the signal to analog as raw and direct as possible.Oversampling mode removes aliasing artifacts, enables all features of the Darwin architecture, and allows customization of the sound signature for different headphones;

DSD bypass function

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

DSD bypass function

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

Headphone specific tuning

We have already cooperated with 10 professional HiFi brands in and outside of China and the sound tuning Experts from each brand are brought to match the various hardware parameters of the Darwin architecture to the characteristics of their earbuds to create bespoke tunings for each brand, all available with a touch of the screen; more to come...

MQA 16x unfolding

The high processing power of the SoC enables an unprecedented 16x unfolding of MQA data and thus the reproduction of the Original master bands 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 small enough to be streamed and downloaded. HiBy works with MQA to bring the true original sound quality to the listeners.

Mature and powerful SoC

Using the mature and powerful Snapdragon 660, coupled with fast LPDDR4 RAM and eMMC storage, resulting in demanding multithreaded calculations (audio or other) can be performed in record time.

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

Great gain scheme

To the whole To top it off, a 1x OPA1642 and 2x OPA1612 discrete current amplification scheme has been implemented, providing ample current to the output stage to achieve excellent dynamic and transient response. This is then coupled to 4 top-of-the-line OPA1622 op amps to give 8 independent headphone amplification channels connected 2x2 in parallel; each channel is a combination of voltage and current gain stages. This is all controlled by a professional NJW1195A digital volume controller, ensuring optimal control and ideal circuit dynamics at all times.

HiBy OS, the eternal god of audio!

The HiBy OS is the system architecture developed by HiBy for HiFi audio , optimized from the ground up for audio processing. Now adapted for Android 9 OS, it opens the system for free installation of any Android app and also supports advanced audio features like USB audio input and output, wireless audio input and output, and system-wide audio effects.

System-wide Direct Transport Architecture now also with USB

The Direct Transport Architecture has always been known for the originally mandatory sample rate conversion of Android for the integrated headphone output.Now DTA can also bypass sample rate conversion for third-party applications, even if they use USB audio, achieving bit-perfect output from almost any application to anywhere

HiByLink support

With the practical HiByLink function, you can control your RS6 via the HiByMusic app on your smartphone and thus playback , volume control, playlist management, etc. remotely!

A wireless world

Supports both Bluetooth audio reception (to wired headphones or USB output) and Bluetooth -Audio transmission (to Bluetooth headphones) according to the Bluetooth 5 standard and a variety of Bluetooth codecs such as UAT, LDAC, aptX, aptX HD, AAC, SBC, etc. Ultra-stable 2.4 GHz and 5 GHz WiFi for reliable, ubiquitous online music access. Support DLNA / AirPlay / WiFi audio transmission.


With its 4500mAh high-capacity battery, the RS6 is capable of up to 8.5 hours of continuous playtime and 25 days standby time. Supports Quick Charge QC3.0 for up to 18W charging power.


Mature, familiar exterior design. Full copper case, champagne gold color available.

3.5mm and 4.4mm

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

High-resolution large 5" 1080p display

5.0", Corning Gorillia glass, 1920x1080 resolution, 443ppi, 16;9, oleophobic.

Scope of delivery

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

Technical Details

  • Darwin architecture
  • Adjustable FIR filter
  • R2R technology
  • R2R linearity compensation
  • Native DSD decoding
  • Optional oversampling filter / NOS
  • Dedicated audio crystal oscillator
  • Qualcomm Snapdragon 660
  • Large 5" 1080p display
  • Open Android 9 operating system
  • DTA Direct Transport Architecture (system-wide bit-perfect audio)
  • USB DTA (bit-perfect USB audio)
  • 16x MQA unfolding
  • Dual 3.5mm and 4.4mm headphone jacks
  • HiByLink
  • WiFi 2.4G & 5G Dual Band WiFi
  • Bluetooth 5.0

    Audio Specifications

    headphone out

    Output port 3.5mm PO headphone out @32Ω 4.4mm PO headphone out @32Ω
    Frequency response (to -3dB) 20-45kHz 20-45kHz
    Output voltage 2.4Vrms 4.7Vrms
    Output power 180mW 690mW
    Crosstalk rejection 72dB 98dB
    S/N ratio 114dB 114dB
    Dynamic range 95dB 95dB
    THD+N 0.003% 0.003%
    Output impedance 0.4Ω 0.8Ω

    Line Out

    Output port 3.5mm LO line out @10kΩ 44mm LO line out @10kΩ
    Frequency response (to -3dB) 20-45kHz 20-45kHz
    Output voltage 2 Vrms 4Vrms
    Crosstalk rejection 102dB 104dB
    S/N ratio 115dB 115dB
    THD+N 0.003% 0.003%
    Output impedance 10kΩ 10kΩ