HiBy R6 Pro II Class A Digital Audio Player

The R6 Pro II is a striking new audio player from HiBy which incorporates AKM’s new flagship DAC duo, the AK4191EQ+dual AK4499EX. This DAC duo is set up in current output mode with complete separation of digital conversion and analog rendering for maximum quality.

All-In Audio Architecture equips the 8 DAC output rails of the AK4499EX each with their own I/V conversion, fully unleashing their potential.

The dual AK4499EX are each set to dual mono output, and all rails of both DACs contribute fully to both balanced and single-ended operation.

Such strategic enhancements to the AK4499EX’s operation in conjunction with ultra-hard output stage circuit design powers yield sound quality worthy of a new flagship.

The R6 Pro II's power supply section is designed by an engineer with over 30 years’ experience in power supply circuit design. Based on numerous sets of high flux, ultra-low internal resistance, fully shielded high power inductors, power supplies are indepdendent for digital, decoding, preamp and output stages - ensuring pure, uninterrupted power without interference.

With dual independent amplification circuit design, you can freely switch between Class A and Class AB amplification on the fly via touchscreen controls.

The Class A amplifier driven by the 2 high perofrmance OPA1652 and 8 NXP bipolar transistors for zero crossover distortion and fast transient response.

Class A amplification unlocks 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.

Class AB amplification mode yields longer play time, lower heat emissions, and is perfectly sufficient for most IEMs on the market.

Two 45.1584MHz and 49.152MHz femtosecond precision crystal oscillators ensure low jitter and phase accuracy for all sample rates.

You will feel the clarity and 3-dimensionality of every note even in highly dynamic, busy passages.

With vanishingly low distortion and colouration, every note is resolved accurately and dynamics are rendered in full.

Whether it's piano notes that resonate in the heart as well as the room, violin notes that are crisp and clear, the breath of the player clearly heard through a flute, or any other instruments, you will never miss a single detail on the R6 Pro II.

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, and at a tremendous sample rate. The highly resolving bit depth and high sample rate of PCM1536kHz / 32bit also ensures more faithful capture than CD quality in all dimensions. In either case the result is more realistic and natural sounds.

With bold asymmetric lines and a striking backplate with carbon accents, the R6 Pro II is stunningly designed as well as easy to grip.

The Hiby R6 Pro II features a 5.9" Corning Gorilla glass display, with a 2160x1080 resolution (16x9) and oleophobic-coating.

HiByOS offers fine volume control, minimal system sound effects, systemwide bitperfect audio even for third-party apps, and all manner of other audio-related system optimizations compared with 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 level optimizations!

The R6 Pro II 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.

The player also supports USB DAC functionality, for use as computer external sound card or digital amplifier for smartphones, etc.

Two-way Bluetooth enables the R6 Pro II to transmit Bluetooth audio to speakers and headphones, as well as receive bluetooth audio from smartphones and PC etc.