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GUSTARD X26III DAC Streamer Black
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Gustard X26III DAC 2x ES9039SPRO NOS 32bit 768kHz DSD512 Streamers LAN Roon Airplay Upnp Black
Gustard's X26III is a balanced DAC and streamer based on two top-of-the-range ES9039SPRO DAC chips, offering accurate conversion of PCM up to 32bit 768kHz and DSD up to DSD512, as close as possible to the original. Its extensive connectivity means it can be used in a wide range of configurations. Furthermore, as the X26 takes CelWare 3.x as its software base, it is compatible with Room Bridge, Airplay, HQPlayer NAA, UpnP, mC Mconnect, Bubble UpnP, Spotify and QQMusic protocols.
Gustard X26III: Dual DAC ES9039SPRO
The X26III uses two ESS ES9039SPRO flagship chips for digital-to-analog conversion, one for each of the left and right channels, each independently powered. These high-end chips enable conversion up to PCM 32bit 768kHz and DSD512. A NOS mode is also available.
Gustard X26III: SHARC DSP
The X26III is also equipped with a high-performance digital filtering solution developed on the Analog Device SHARC DSP platform specifically for digital audio, whose main objective is to reduce aliasing noise in the frequency range of digital audio. This filter improves sound quality by increasing the scale and shaping the noise of the raw digital audio signal. The anti-aliasing algorithm and high-precision 64-bit floating-point operation used in this program ensure sound reproduction of pristine quality.
Gustard X26III: Gustard FPGA
Here, Gustard deploys its own FPGA for signal reconstruction, clock signal management, shaping of the second phase-locked loop, DOP demodulation and denoising of PCM and DSD signal switching noise.
Gustard X26III: GCLK internal clock
The X26III uses a GCLK clock module and a high-performance clock frequency synthesizer that uses advanced PLL (Phase Locked Loop) technology to ensure clock signal stability and accuracy. The design of this module allows it to use either a local clock source or an external 10Mhz clock signal, giving you a qualitative and flexible clock solution.
Gustard X26III: Discrete low-pass filter
The low-pass filter at the output of the ES9039SPRO DAC chips has been designed using Class A discrete circuits. This approach enabled Gustard to fine-tune the filter as much as possible during the design phase, resulting in a warm, natural-sounding sound reproduction with non-existent noise and distortion.
Gustard X26III: CelWare 3.x
The X26III is based on CelWare 3.x. This OS uses a linux kernel optimized for audio signal input and output, and is compatible with Room Bridge, Airplay, HQPlayer NAA, UpnP, mC Mconnect, Bubble UpnP, Spotify and QQMusic protocols. You can easily activate or deactivate the various protocols by using your PC browser and typing '//x26.local'.
Gustard X26III: XMOS USB interface
The X26III also features a USB XMOS XU216 interface, enabling it to support signals up to PCM 768kHz and DSD512.
Gustard X26III: Power supply
The X26III uses two transformers to supply the digital and analog parts of the device independently, ensuring total absence of interference. Furthermore, each channel benefits from filter capacitors to ensure a stable voltage and an absolute absence of parasitic noise.
Gustard X26III: I2S pinout
Technical characteristics
| Specifications | |
|---|---|
| Product type | DAC Streamers |
| Inputs | 1x USB-B 1x RJ45 1x HDMI I2S 1x Coaxial 1x AES/EBU 1x Optical Toslink 1x BNC clock input (50Ω) 1x USB-C |
| Outputs | 1x Single-ended stereo RCA 1x Balanced stereo XLR |
| DAC chips | 2x ES9039SPRO |
| USB interface | XMOS XU216 |
| Supported sampling rates | COAX/AES/OPT: PCM 24bit 192kHz / DSD DOP64 / MQA USB: PCM 32bit 768kHz / DSD DOP256 /Native DSD512 / MQA RJ45: PCM 32bit 768kHz / DSD DOP256 /Native DSD512 / MQA I2S: PCM 32bit 768kHz / DSD DOP256 /Native DSD512 / MQA |
| Network protocols | Room Bridge Airplay HQPlayer NAA UpnP mC Mconnect Bubble UpnP Spotify QQMusic |
| Frequency response | 20Hz - 20kHz (±0.3dB) |
| Dynamic range | 128dB |
| Signal-to-noise ratio (SNR) | 127dB |
| Crosstalk | -132dB @10kHz |
| Total harmonic distortion more noise (THD+N) | ≤ 0.0001% @ 1kHz |
| Intermodulation (IMD) | ≈ 0.001% @ -1dBFS |
| Output level | RCA 2.5Vrms (fixed volume) XLR: 5.1Vrms (fixed volume) |
| Output impedance | 100Ω |
| General | |
|---|---|
| Power supply voltage | 115V/230V AC 50Hz/60Hz (Selectable) |
| Consumption | < 25W |
| Dimensions | 330 x 260 x 65mm |
| Weight | 7kg |
| Color | Black |
| Package | 1x Gustard X26III 1x Remote control 1x USB-A to USB cable-B 1x Power cord |
| Input | USB |
| Input | Optical |
| Input | I2S via HDMI |
| Input | Clock (BNC) |
| Input | SPDIF |
| Input | RJ45 |
| Input | AES/EBU |
| Output | RCA |
| Output | XLR |
| DAC / ADC Chip | ES9039MPro / ES9039MSPro |
| Max sampling rate | DSD512 |
| Max sampling rate | MQA |
| Max sampling rate | 768kHz |
| Color | Black |
| Networking | Yes |
| Remote Control | Yes |
| Streaming services & Network protocols | QQMusic |
| Streaming services & Network protocols | Spotify |
| Streaming services & Network protocols | Roon / Roon Bridge / Roon Ready |
| Streaming services & Network protocols | UpnP |
| Streaming services & Network protocols | Bubble UpnP |
| Streaming services & Network protocols | AirPlay |
| Streaming services & Network protocols | HQPlayer NAA |
| Streaming services & Network protocols | mC Mconnect |
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