HiBy R6 ProII 2025 DAP — Android 12, Dual CS4308P DACs, Class A/AB Amplifier, 6GB RAM

The HiBy R6 ProII 2025 is a portable high-fidelity digital audio player built for serious listeners who want immersive sound on the go. Running on HiByOS, an Android 12 based system customized for pro audio, the player blends flexible media playback with refined sonic performance.

Powerful hardware for smooth, responsive playback

Under the hood you will find a Qualcomm Snapdragon 665 (11nm) chip paired with 6 GB of RAM and 128 GB of internal storage. This combination aims to deliver fluid multitasking, quick app launches, and reliable access to a large music library as you switch between players, playlists, and streaming apps.

• Effortless navigation and responsive gestures on a 5.9 inch touchscreen
• Ample onboard storage with the option to expand up to 2 TB for deep catalogues

Advanced sound reproduction with dual DACs

The R6 ProII uses two flagship Cirrus Logic CS4308P DAC chips, delivering 32 bit oversampling, a 123 dB dynamic range, and THD+N below -115 dB. The result can reveal space, detail, and nuance across a wide range of music formats.

• DSD 512 native decoding and PCM up to 768 kHz / 32 bit
• MQA 16X unfolding to maximize each track's potential

With independent hardware rails for the DAC, I V conversion, and output stages, the design aims to reduce interference and preserve signal purity. This attention to power delivery can be meaningful when using high impedance headphones or demanding in ear monitors.

HiByOS and streaming ready

HiByOS on Android 12 brings bottom up audio optimizations and a global SRC bypass to help third party apps preserve high bitrate audio. The device can run Spotify, YouTube, and other services while still prioritizing sound quality on local files.

• Support for both lossless and lossy formats
• Flexible app experience without navigation limits in practice

Versatile listening with two amp architectures

One tap lets you switch between Class A and Class AB amplifier modes. Class A uses dedicated op amps and transistors to deliver a full, expansive sound for high impedance headphones. Class AB offers efficient power use and heat management for most in-ear headphones.

In daily use you may notice a balanced, detailed presentation across genres, with a sense of stage width and control that supports a personal listening style without overstatement. The combination of a capable Android based OS, robust decoding, and thoughtful hardware design positions the R6 ProII as a portable option for enthusiasts who seek realism and presence in their music.