HiBy RS8 II Digital Audio Player

The RS8 II is HiBy's newest ultra-flagship, the first true successor to the RS8 in three years and the debut of the third generation Darwin III architecture. Everything about the FPGA, resistor layout, and processing power was rebuilt from the ground up rather than iterated on.

Type and Technology

• Darwin III architecture, a fully in-house developed R2R FPGA DAC platform, the same core shared with the RS2 II
• Qualcomm QCS8550 SOC, open Android 13, 16GB RAM
• Adaptive amplification with AI-enabled tone controls, a departure from earlier RS-series fixed Class A/AB switching
• Wi-Fi 7 MIMO, USB 3.2 capable as both a DAC and a transport, with SPDIF and I²S output
• Native DSD1024-class decoding and PCM up to 32bit, 16x MQA unfolding
• 3.5mm and 4.4mm independent headphone and line outs

Sound Character

Reviewers describe the RS8 II as less about chasing bigger numbers than the RS8 and more about a smooth, natural presentation shaped by the deeper, more configurable Darwin III architecture and its adaptive tone controls. Manufacturer-quoted figures are strong across the board: 0.001% THD and 116.4dB SNR on the 4.4mm balanced headphone output, rising to 0.0008% THD and 122.1dB SNR on the balanced line out. These are HiBy's own published figures; independent third party measurements aren't yet available.

Build and Comfort

• Available in Black and Gold
• Successor chassis to the original RS8's titanium design, refined for the new internals

Best For

• Listeners who already know the Darwin R2R sound and want HiBy's current best implementation of it
• Full Android flagship functionality (Wi-Fi 7, streaming apps) alongside desktop-grade line out specs
• A anchor source for a serious desk or travel rig where line-out performance matters as much as headphone output

What's in the Box

RS8 II player and documentation. HiBy hasn't published a full accessory list for this generation yet, we'll confirm case and cable inclusions once retail units are in hand.

Specifications