HiBy R6Pro II 2025 – Dual CS4308P DAC Hi-Res Lossless Portable Music Player

The HiBy R6Pro II 2025 is the next evolution of HiBy’s acclaimed portable digital audio player (DAP), designed for discerning audiophiles who seek uncompromising fidelity, raw power, and modern versatility. With dual Cirrus Logic CS4308P flagship DACs, switchable Class A/AB amplification, and a 632mW balanced output, this player sets a new standard for Hi-Res portable music players in 2025.

Dual CS4308P DACs – A World’s First in Portable HiFi

The R6Pro II 2025 debuts the industry’s first dual-chip CS4308P DAC architecture, running twin DACs in parallel for superior sound density, imaging, and micro-detail. Capable of 32-bit/768kHz PCM, DSD512, and MQA 16× decoding, it achieves:

• 123dB dynamic range

• Ultra-low THD+N (-115dB)

• A sound signature that is rich, natural, and layered

The result: a lifelike listening experience with breathtaking resolution and holographic soundstage.

Class A / AB Amplification – Two Amps in One

HiBy equips the R6Pro II 2025 with dual independent amplifier circuits:

• Class A Mode → Ultra-linear, distortion-free power for demanding full-size headphones and multi-driver IEMs.

• Class AB Mode → Efficient, cooler operation for daily listening with extended battery life.

With one-touch switching, you can tailor the output to your headphones and preferences.

Flagship-Level Output Power

The 632mW @ 32Ω (4.4mm balanced) output makes this DAP powerful enough to rival desktop amps, delivering:

• Faster transients

• Deeper bass impact

• Wider dynamic swings

• Effortless drive for high-impedance headphones

Compared to the previous R6Pro II, the 2025 model doubles down on power and refinement, ensuring every track feels more alive and immersive.

Smooth, Musical, Fatigue-Free Tuning

Specially tuned for mid-low frequency richness, the R6Pro II 2025 emphasizes:

• Warm, natural mids

• Smooth treble with no harshness

• Velvety texture in vocals and instruments

This makes it perfect for long listening sessions, balancing reference-grade detail with enjoyable musicality.

Premium Hardware & Design

• Qualcomm Snapdragon 665 SoC (11nm) for fluid multitasking

• 6GB RAM + 128GB internal storage, expandable via microSD up to 2TB

• HiByOS (Android 12) with true bit-perfect playback for streaming & offline apps

• 5.9″ IPS Full HD+ (2160×1080) display with Corning Gorilla Glass

• Artistic aluminum + glass chassis with futuristic abstract back panel

• HiByCast remote control for wireless operation via smartphone/tablet

Connectivity & Versatility

• Outputs: 3.5mm PO, 4.4mm BAL, Line-Out, Coaxial Digital, USB-C (Audio Out/SPDIF)

• Inputs: USB DAC (PC/phone), Bluetooth DAC

• Wireless: Dual-band Wi-Fi + Bluetooth 5.0 with UAT, LDAC, aptX HD, aptX, AAC, SBC

• Battery: 5000mAh, PD 18W fast-charging (<2h full charge)

• Playback Time: Up to 12h (Class AB) / 5.5h (Class A)

The R6Pro II 2025 can function as a standalone DAP, a high-quality Bluetooth receiver, or a digital transport in your home audio chain.

HiBy R6Pro II (2025) vs HiBy R6Pro II – What’s New?

The 2025 edition brings significant improvements across the board:

Key Improvements

• Higher Output Power: From 383mW → 632mW balanced

• Cleaner Sound: Lower distortion & noise floor

• Better Detail: Higher dynamic range & SNR

• Wider Stage: Improved channel separation

✅ Verdict: The HiBy R6Pro II 2025 is not a minor update—it’s a major leap forward, offering desktop-class power and refinement in a portable DAP. If you own the original, the upgrade is well worth it.

Why Choose the HiBy R6Pro II 2025?

• First-ever dual CS4308P DAC portable player

• Desktop-grade output power in a pocket-sized form

• Flexible Class A / AB amplification

• Flagship build & HiByOS integration

• Audiophile-grade tuning with everyday usability

The HiBy R6Pro II 2025 is the ultimate portable choice for audiophiles in 2025—a lossless Hi-Res DAP that blends raw power, musical warmth, and modern versatility.