HiBy Launches RS2 II Portable Hi-Fi Player with Flagship DARWIN III Architecture
LEWES, Del. , Oct. 19, 2026 /PRNewswire/ -- HiBy has officially launched the RS2 II , a compact portable Hi-Fi player featuring the company's third-generation DARWIN III audio architecture , the same architecture used in the flagship RS8 II. Designed for audiophiles seeking flagship-level sound in a smaller and more portable form, the RS2 II combines HiBy's proprietary R2R technology, a fully balanced analog stage, HiByOS, and flexible connectivity.
hiby rs2 ii poster - 2 versions
At the heart of the RS2 II is the DARWIN III architecture , powered by a newly developed FPGA digital engine featuring more than 35K logic units and 40 high-speed, high-performance DSP units . This processing platform provides the computing power required for HiBy's adjustable pure FIR filters, multiple DARWIN filters, harmonic control, NOS/OS switching, and native DSD processing.
Digital-to-analog conversion is handled by a high-precision R2R resistor network . High-speed electronic switches drive the resistor network to convert digital signals into corresponding analog voltage levels, helping reduce high-frequency noise introduced by digital modulation while delivering a natural, transparent, and musical presentation.
The analog stage uses a four-stage OPA1612 signal chain . One OPA1612 performs low-pass filtering after the DAC stage, another provides current amplification after volume control, while two additional OPA1612 devices form a fully balanced voltage amplification stage. At the headphone output, four flagship-grade OPA1622 amplifiers provide independent four-channel current amplification for improved dynamics, control, and compatibility with multi-driver earphones.
The RS2 II is also more compact than its predecessor. The standard aluminum alloy edition weighs just 156g and features a dark green finish with a houndstooth-pattern rear panel. Compared with the original RS2, the display area has increased by 45% and resolution by 122%. The new 3.55-inch 480 × 800 display , together with narrower bezels, provides a significantly improved visual experience. An upgraded X1600E dual-core platform further enhances system responsiveness.
Running HiBy's dedicated HiByOS , the RS2 II supports coaxial output, Line Out, and USB DAC functionality. Dual microSD card slots support up to 4TB of total expandable storage .
The HiBy RS2 II Aluminum Alloy Edition is priced at US$439 and is available as a standard production model. The Limited Brass Edition is priced at US$549 and is expected to become available in October, with worldwide production restricted to just 500 units .
Contact William Yueng bd@hiby.com