HiBy R6 Pro II

Portable Lossless Digital Music Player

  • Dual AK4499EX+AK4191
  • USB DAC / Coaxial Digital / Line Out Fully
  • Femtosecond Precision Crystal Oscillators
  • Qualcomm Snapdragon 665 & 5.9”Large Hi-Res Display
Regular price $749.00
Sale price $749.00 Regular price
Unit price
Tax included.
HiBy R6 Pro II

HiBy R6 Pro II

Product description
Technical Details
Shipping & Returns
Warranty Policy

HIFI Reimagined in Shape and Quality

If you are familiar with HiBy R6Pro, then HiBy R6Pro (Gen 2) is definitely a product that deserves your attention. HiBy R6Pro (Gen 2) has improved both appearance and performance compared to HiBy R6Pro: larger screen, more stylish appearance, longer battery life and so on. Of course, the HiBy R6Pro (Gen 2) continues Hiby's attitude towards the product as always.

Powerful Core and Independent Power Supply Design

Utilizing AKM’s new flagship DAC duo, AK4191EQ+dual AK4499EX, in current output mode with complete separation of digital conversion and analog rendering. Hiby's engineers designed the Hiby R6 Pro II with a 4 section independent power supply. It is based on numerous sets of high flux, ultra-low internal resistance, fully shielded high power inductors, power supplies are made independently for digital, decoding, preamp and output stages, for pure, uninterrupted power without interference.

All-In Audio Architecture and Class A/AB Dual Amplification Circuits

The R6 pro II is designed with dual independent amplification circuits, which can be freely switched via the touch screen. Well regarded Class A amplifier driven by 2 OPA1652 and 8 NXP bipolar transistors for zero crossover distortion and fast transient response. Turn on Class A amplification to unlock stronger drive control at the same time as enhancing power and density of the sound, handling full-size headphones and complex loads such as multi-hybrid IEMs with aplomb. Turn on Class AB amplification mode yields longer play time, lower heat emissions, and is perfectly sufficient for most IEMs on the market.

NDK Femtosecond Precision Crystal Oscillators

45.1584MHz and 49.152MHz femtosecond precision crystal oscillators onboard for ultra-low phase noise and jitter for precision digital signals to be converted to exquisite analog details. You can feel the clarity and 3-dimensionality of each note even in highly dynamic, busy passages. With vanishingly low distortion and colouration, every note is resolved accurately and dynamics are rendered in full.

Industry-leading DSD1024 and PCM 1536kHz / 32bits Native Decoding

DSD1024 is one of the highest-spec formats currently on the market at the moment, encoding audio signals at many-fold higher bitrate than CD quality. The highly resolving bit depth and high sample rate of PCM1536kHz / 32bit also ensures more faithful capture than CD quality in all dimensions.

Powerful Processing Power

The R6 Pro II is powered by the Qualcomm Snapdragon 665. This SoC yields higher computational and graphics abilities. In conjunction with HiBy’s many years of software and hardware integration experience, a high level of fluidity and responsiveness is achieved for all music app usage and more besides. The R6 Pro II has a 5.9”large hi-res display that uses Corning Gorilla glass, 2160x1080 resolution, 16:9, oleophobic-coated.

HiByOS and Systemwide HiByCast Remote Control

HiByOS based on Android 12. It offers fine volume control, clearing of unwanted extra sound effects, systemwide bitperfect audio even for third-party apps, and all manner of other audio-related system optimizations over regular Android 12 and even any other flavour of customization found on the market. Meanwhile it offers the same UI experience as mainstream smartphones and multi-task switching smoothness on a level with flagship smartphones thanks to kernel optimizations. Meanwhile, HiByCast supports systemwide remote control of all device functionalities from any smartphone or tablet. Third-party app opening and control, browsing are all remote accessible.

Multipurpose Audio Input/Output

Supports line out, coaxial digital output, USB audio out, Bluetooth audio output etc. , allowing you to easily integrate the R6 pro II into your home audio system. Also supporting USB DAC in functionality, for use as computer external sound card or digital amplifier for smartphones, etc. Two-way Bluetooth enables Bluetooth audio input for use as a Bluetooth receiver for wired headphones.

technical specifications
Operating system
Operating system
Android 12.0
SoC model
Snapdragon 665
CPU architecture
8-core Kryo 260
CPU frequency
AK4191EQ+dual AK4499EX
Audio Formats
DSD1024, PCM1536KHz/32bit, MQA16X
Supports 2.4 and 5GHz
Two-Way Bluetooth 5.0
Hi-Res BT Codecs
WiFi Audio
Airplay, DLNA, HiByLink
USB2.0 and USB 3.1 compatible up to 10Gbps bandwith
Display size
Display type
Internal storage
Micro SD
Supports up to 2TB
Black & Purple
Body material
Aluminum Chasis with Toughened glass backplate
147.45*75.2*15 mm
Approx. 285g
Charging power source
5V⎓0.5A / 9V⎓2A
Battery capacity
Charging time
Less than 2 hours (0-100%)
Play Time
3.5mmPO up to 8 Hours, 4.4mmBAL up to 7 Hours, 3.5mmPO up to 6 hours, 4.4mmBAL up to 5 Hours
Charging Standard
PD 2.0 18W
Firmware Updates
OTA Online updates
Font Size
APP third party apps
Unlimited installation
Headphone Out Specifications
Output port
3.5mm PO headphone out
4.4mm PO headphone out
Frequency response
Output voltage
Output power
125 mW
383 mW
Crosstalk rejection
70 dB
98 dB
S/N ratio
117 dB
118 dB
Dynamic range
118 dB
119 dB
Line Out Specifications
Output port
3.5mm LO
4.4mm LO
Voltage Swing
Max Power
Crosstalk rejection
70 dBr
70 dBr
117 dB
117 dB
118 dB
118 dB
Freq. Response


Elise Audio has a standard 14-day return / exchange policy for electronic products (DAC/DAP):

Must be returned in like-new factory condition 

Must include all original packaging and accessories

Please note that the return shipping cost is to be paid by the customer.

Returning products that raise hygiene concerns - Products that have contact with the ear, nose or throat can only be returned for a full refund if sent back sealed and in unused condition. This applies all in-ear monitors.

If you are dissatisfied with your product please get in touch with us. We may be able to offer credit for another purchase (subject to inspection of the returned product) or to purchase the product back as used if we can dispose of the item as B stock. Please note the products would need to be inspected before any final offers are made but, as a guidance only, a 20% restocking fee will be applied on most in-ear monitors.

Custom made products - Products that have been custom made to the customer's specification cannot be returned for a refund or credit under this policy.

Read our full Returns, Warranty & Terms of service by clicking here


We offer a range of delivery options to suit your purchasing needs. The options are presented to you at the checkout, in an easy to understand way.

Most orders for In-Stock items are shipped within 1 to 3 business days (Monday to Friday, except bank holidays), subject to stock availability and security checks. Please ensure you provide a valid phone number for us to contact you should verification of your identity be required.

For More information about our Shipping Policy please click here

Royal Mail Special Delivery - Next Business Day

Products purchased from Elise Audio are supplied with a manufacturer warranty that is specified on the product page on our website. Most products come with a 1Y manufacturer warranty (or 3 months for B-grade, open box, refurbished, ex-demo and second hand items).

The manufacturer's warranties are limited to physical defects in the materials, parts and workmanship used in making the product. Abnormal conditions, deliberate abuse and damage due to accidents, operator's error, or unauthorized service attempts are excluded from any warranty claims.

Faulty goods returned under the manufacturers warranty are to be returned to Elise Audio at the cost of the customer. Elise Audio will cover the cost of shipping the repaired or replacement product back to the customer.

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