# HiBy Launches RS2 II Portable Hi-Fi Player with Flagship DARWIN III Architecture

- Link: https://www.thailand-business-news.com/pr-news/hiby-launches-rs2-ii-portable-hi-fi-player-with-flagship-darwin-iii-architecture
- Published: 2026-10-19T15:34:00+07:00
- Author: PR Newswire

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⌉⌊hiby rs2 ii poster - 2 versions⌉[
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](https://www.thailand-business-news.com/pr-news/bd@hiby.com)

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