Utilises Proprietary Discrete R-2R Architecture For Organic, Analog Sound

Gustard R26 II is built around a fully discrete R-2R resistor ladder network, this design performs direct, instantaneous digital-to-analog conversion without high-frequency modulation or noise-shaping. By bypassing typical Delta-Sigma artifacts, it delivers a purist presentation that sounds inherently natural, fluid, and analog-like. Achieving this level of linearity requires ultra-precise component matching and meticulous engineering far beyond standard manufacturing tolerances.

Implements Native 1-Bit DSD Conversion For Pure Signal Integrity

At its core lies a true 1-bit DSD D/A converter supporting up to DSD2048 via I²S, offering up to 32× the resolution of standard SACD (DSD64). DIRECT DSD Mode feeds the raw bitstream straight into the switch array, completely bypassing PCM conversion and DSP processing to preserve full dynamic range, transient response, and the dense, atmospheric character of native DSD playback.

Employs GCLK-02 PLL Clock Module For Ultra-Precise Timing Stability

Gustard R26 II embeds a GCLK-02 clock module uses advanced PLL technology with locking accuracy within 1 Hz, continuously correcting frequency and phase through a precision feedback mechanism. This ensures exceptionally stable clock signals, reducing jitter and enhancing timing accuracy across the entire conversion chain.

Supports External 10MHz Master Clock Input For Reference-Grade Synchronisation

Gustard R26 II features a BNC input for high-quality external 10 MHz clock sources (50Ω, 0dBm–20dBm), supporting both CMOS square wave (0.2V–3.3V) and sine wave (0.5V–3.3V) signals. Adding an external master clock can further elevate timing precision and overall audio performance.

Integrates Proprietary Digital Control Technologies For Optimised Playback

Gustard R26 II utilises exclusive internal technologies that include custom digital logic, advanced clock management, secondary PLL shaping, DoP demodulation, and PCM/DSD anti-pop switching. Together, these systems create a stable foundation for clean operation and consistently high sound quality.

Features Bespoke Discrete Class-A LPF Stage For Tunable Analog Output

Gustard R26 II’s analog output stage uses a fully discrete Class-A low-pass filter tailored specifically for the R-2R architecture. Free from standard op-amp limitations, this topology allows precise optimisation of transistor operation, bias, compensation, and harmonic structure, resulting in richer timbre, sharper transients, and a more nuanced presentation. Extensive precision matching and careful PCB design minimise parasitic effects and thermal drift.

Fuses Proprietary Network Bridge System With CelAudio For Bit-Perfect Streaming

Gustard R26 II has co-engineered with CelAudio, the dedicated streaming module is designed using a subtractive philosophy that removes non-essential computing hardware to lower electrical noise. Running the CelWare 3.x playback system on a deeply customised Linux kernel with real-time scheduling, it achieves ultra-low latency, minimal jitter and enhanced micro-detail retrieval.

Fuses Proprietary Network Bridge System With CelAudio For Bit-Perfect Streaming

Gustard R26 II has co-engineered with CelAudio, the dedicated streaming module is designed using a subtractive philosophy that removes non-essential computing hardware to lower electrical noise. Running the CelWare 3.x playback system on a deeply customised Linux kernel with real-time scheduling, it achieves ultra-low latency, minimal jitter and enhanced micro-detail retrieval. Through rigorous software service management, unused network protocols and background processes can be disabled to reduce CPU load and system interrupts. This “quiet mode” focuses all computing resources solely on bit-perfect audio playback, maximising fidelity and stability. Note : For bridge configuration - visit r26.local

Equips Qualcomm QCC5125 Bluetooth 5.1 Chip For Hi-Res Wireless Streaming

Gustard R26 II Supports Bluetooth 5.1 with LDAC, AAC, SBC, and aptX codecs via the Qualcomm QCC5125 platform, enabling stable, low-latency wireless playback with high-quality audio transmission across a wide range of devices.

Utilises XMOS XU216 USB Interface For Ultra-High-Resolution Decoding

Gustard R26 II features a dedicated XMOS XU216 USB processor that supports PCM up to 768kHz and native DSD512, ensuring precise data handling, low jitter, and uncompromised high-resolution audio performance over USB.

Embeds Dual Independent Power Supplies With Toroidal Transformers For Noise Isolation

Gustard R26 II’s digital and analog stages are powered by separate supplies using two dedicated audio-grade toroidal transformers, providing physical isolation that minimises crosstalk and shields sensitive circuitry from RF interference.

Incorporates Independent LDO Regulation And Hierarchical Filtering For Clean Signal Paths

Gustard R26 II embeds dual-channel independent LDOs with multi-stage hierarchical filtering deliver end-to-end power separation, effectively suppressing noise and crosstalk while preserving channel purity.

Utilises Multi-Route Power Supply Design For Stable, Low-Noise Operation

Gustard R26 II features multiple robust power rails ensure stable and clean operation across subsystems, distributing power efficiently to reduce interference and maintain consistent performance under varying loads.