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Official product information provided by Gustard
The following product descriptions, specifications and images are provided by the manufacturer.
The Gustard X26III is a flagship-level desktop DAC featuring dual ESS ES9039SPRO DAC chips in a fully-balanced configuration, with DSP autonomous digital filtering, FPGA programming logic and the GCLK-02 clock module. Built-in network streaming makes it a complete digital hub for high-end audio systems.
Why it stands out
Dual ES9039SPRO DAC Chips
Two ESS ES9039SPRO chips in fully-balanced dual-mono configuration deliver exceptional dynamic range (>128dB), ultra-low THD+N (≤0.0001%) and precise channel separation (-132dB). The hybrid IV conversion and discrete analog LPF circuits ensure optimal analog output performance.
DSP Autonomous Digital Filtering
Analog Devices SHARC DSP handles autonomous digital filtering with multiple selectable filter profiles, letting you tailor the sound to your preference — from sharp linear-phase to slow minimum-phase rolloff.
GCLK-02 Clock & FPGA Control
The GUSTARD GCLK-02 clock module provides ultra-low jitter clocking, while the proprietary FPGA programming logic chip manages digital signal processing and interface control with precision and flexibility.
Network Streaming & Full Connectivity
Built-in network streamer with Roon Ready, AirPlay, DLNA and UPnP support. USB-B (XMOS XU216), I²S (HDMI), AES/EBU, coaxial and optical inputs cover every digital source. Balanced XLR (5.1Vrms) and RCA outputs connect to any amplifier.
Best for
- High-end desktop or compact audio systems seeking flagship ESS DAC performance
- Listeners who want selectable digital filtering profiles
- Network streaming setups with Roon or AirPlay
- Systems with balanced XLR amplification
Not ideal for
- Listeners who prefer R2R DAC character (see R26II or R30)
- Systems requiring built-in headphone amplification
- Budget-conscious buyers
Specifications
| DAC Chips | 2× ESS ES9039SPRO (fully-balanced dual-mono) |
| DSP | Analog Devices SHARC DSP (autonomous digital filtering) |
| FPGA | Proprietary FPGA programming logic |
| Clock | GUSTARD GCLK-02 clock module |
| USB Interface | XMOS XU216 |
| PCM | Up to 32-bit/768kHz |
| DSD | Up to DSD512 |
| Digital Inputs | USB-B, I²S (HDMI), AES/EBU, Coaxial, Optical, LAN |
| Analog Outputs | Balanced XLR (5.1Vrms), Single-ended RCA |
| Dynamic Range | >128dB |
| SNR | >126dB |
| THD+N | ≤0.0001% @ 1kHz |
| Channel Crosstalk | -132dB @ 1kHz |
| Streaming | Roon Ready, AirPlay, DLNA, UPnP, Spotify Connect |
| Power | AC 115V/230V 50/60Hz, <25W |
| Dimensions | W330 × D260 × H65mm |
| Weight | 7.5kg (packaged) |
FAQ
Q: How does the X26III compare to the R26II?
A: The X26III uses dual ESS ES9039SPRO chips for a detailed, analytical presentation with DSP digital filtering. The R26II uses fully-discrete R2R architecture for a warmer, more natural sound. Both are similarly priced and feature network streaming.
Q: Does the X26III support MQA?
A: MQA support may vary by firmware version. Refer to the latest specifications for confirmation.
Q: Is the X26III Roon Ready?
A: Yes, the X26III features built-in network streaming with Roon Ready certification.
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Orders ship from Suzhou, mainland China.
Shipping charges and any taxes collected at checkout are shown before payment. See our Shipping & Tax Policy for supported destinations, weight-based rates and import charges.
EMiUZEK commercial warranty
EMiUZEK provides a commercial warranty: DACs, amplifiers, IEMs and dongles: 1 year; cables and adapters: 3 months. This warranty is provided by Yangzhong Jindun Digital Technology Co., Ltd. Manufacturer warranties, where available, are separate and subject to the relevant brand's terms. This commercial warranty does not limit mandatory statutory rights or legal remedies.
Returns
Request an eligible return within 30 days of delivery. Eligible non-defective items may be unused or opened but in like-new condition. Contact us before sending a return. Conditions, exclusions and costs are set out in the Return Policy.