€1,649.00*
In stock, delivery time: 1-3 days
26-bit network streaming DAC with R2R
- Pure R-2R architecture
- Native DSD and PCM support
- GUSTARD Femto clock system for maximum precision
- Discrete Class A low-pass filter
- Proprietary network bridging system
- Includes remote control
Native 1-bit DSD for pure audio
The GUSTARD R26II features a native 1-bit DSD DAC and supports up to DSD2048 via the I2S interface. This enables an astonishing 32-fold increase in resolution compared to standard SACD (DSD64), delivering exceptional dynamic range, clarity, and richness of detail. By bypassing any internal PCM transcoding or DSP processing, an unadulterated signal path is ensured, preserving the full depth and atmosphere of the original recording. Whether you’re listening to high-resolution files or classic recordings, the R26II reproduces music with unparalleled realism and depth.
Advanced R-2R Resistor Network
At the heart of the R26II lies a fully discrete R-2R resistor network, a purist approach to digital-to-analog conversion. Unlike delta-sigma DACs, which rely on high-frequency modulation and noise shaping, R-2R directly converts digital signals to analog without delay, delivering a clearer, more natural sound. This design eliminates digital artifacts and ensures a highly precise and organic listening experience. The result is a sound character that is rich, harmonious, and unmistakably analog.
GCLK-02 Clock Module
The GUSTARD R26II is equipped with high-precision GUSTARD femto-clock technology. The GCLK-02 clock module uses advanced PLL technology to achieve a synchronization accuracy of less than 1 Hz, thereby ensuring the highest precision. By adjusting the output frequency via a precise feedback mechanism, it ensures outstanding stability and accuracy of both the frequency and phase of the clock signal.
26-bit R2R DAC module derived from the R30
It utilizes the advanced decoding technology from Gustard’s flagship R30 and delivers exceptional linearity, natural timbre, and the organic sound character for which R2R architecture is known—now with enhanced 26-bit processing for a superior dynamic range.
Fully Discrete R2R Ladder Architecture
The true resistive ladder DAC design eliminates the digital harshness of delta-sigma converters and delivers a smooth, analog-like sound with exceptional musicality and a three-dimensional soundstage.
Advanced Saier Network Bridge
The enhanced network streaming system ensures stable, high-quality audio transmission over Ethernet and supports all common streaming protocols and services.
Bluetooth 5.1 Connectivity
The Bluetooth 5.1 standard offers improved range, stability, and lower latency compared to earlier versions—perfect for wireless streaming from smartphones and tablets.
Support for DSD512 and PCM 768 kHz
Supports the highest-resolution audio formats, including native DSD512 (22.5792 MHz) and PCM up to 768 kHz/32-bit, ensuring compatibility with all high-resolution audio sources.
Comprehensive digital inputs
USB, optical (TOSLINK), coaxial (SPDIF), AES/EBU, and network streaming inputs offer maximum flexibility for connecting all your digital sources.
Balanced XLR and RCA Outputs
Both balanced XLR and unbalanced RCA analog outputs enable seamless integration into any audio system, from desktop setups to high-end components.
High-Quality Power Supply Design
Upgraded capacitors and an optimized power supply circuit minimize noise and interference, creating a completely silent background that brings out even the quietest musical details.
Precision Metal Chassis
The robust aluminum construction provides excellent electromagnetic shielding and heat dissipation while ensuring an elegant, professional appearance.
Remote Control Included
The convenient wireless remote control allows for easy input selection, volume control, and adjustment of settings from your listening position.
Dual Toroidal Transformers for Clean Power Supply
The R26II features two independent toroidal transformers that provide separate power supplies to both the digital and analog sections of the DAC. These high-quality transformers isolate the D/A conversion process from harmful electromagnetic interference and crosstalk, ensuring a clean and stable power supply. Combined with multi-stage filtering and independent power supplies, this results in extremely low noise, an extended dynamic range, and a clear, distortion-free sound.
Proprietary Network Bridge System
Developed in collaboration with CelAudio, the GUSTARD R26II features a proprietary network bridge system. This specially developed streaming module is designed from the ground up for uncompromising digital transmission.
Technical Specifications
Digital and Analog Interfaces
Digital Inputs: USB-B (XMOS XU216), RJ45 Ethernet (LAN), I²S (HDMI), AES/EBU, coaxial (RCA), optical (Toslink)
Analog Outputs: 1x balanced XLR, 1x unbalanced RCA
Additional Connections: 1x 10-MHz BNC input for external master clocks (50 ohms), 1x USB-C (for firmware updates)
Supported Audio Formats and Sample Rates PCM Support: Up to 32-bit / 768 kHz (via USB/LAN) and up to 1536 kHz via the I²S interface
DSD support: Native 1-bit DSD up to DSD512 (USB/LAN) and up to DSD2048 via the I²S input DoP (DSD over PCM): DoP64 to DoP256
Network and Connectivity
Streamer operating system: Enhanced Saier system (CelWare) based on Linux
Protocols: Roon Bridge, UPnP/DLNA, HQPlayer NAA, Apple AirPlay, and Spotify Connect
Bluetooth: Version 5.1 with codec support for LDAC, aptX HD, aptX LL, AAC, and SBC
Audio Performance and Specifications
Frequency response: 20 Hz – 20 kHz (±0.1 dB to ±0.2 dB depending on filter)
Dynamic range: > 117 dB up to 130 dB (A-weighted at 26-bit processing)
Signal-to-noise ratio (SNR): > 122 dB up to 130 dB
Total harmonic distortion plus noise (THD+N): < 0.0003% to 0.002% at 1 kHz
Output level: XLR: 4.0 Vrms to 5.0 Vrms / RCA: 2.0 Vrms to 2.5 Vrms
Output impedance: < 100 Ω (RCA), < 200 Ω (XLR)
Enclosure, Power Supply, and Dimensions
Architecture: Fully balanced design with no operational amplifiers in the signal path; discrete Class-A low-pass filters
Power supply: Two separate, encapsulated toroidal transformers for the digital and analog sections
AC voltage: 115 V/230 V, 50/60 Hz (manual switching)
Power consumption: < 20 W
Dimensions: 330 x 260 x 65 (without feet, 10 mm)
Weight: 5.5 kg
Package contents
1 x Gustard R26II
User manual