Gustard | 歌诗德

Gustard DAC-X26


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The Gustard DAC-X26 uses two of the ESS Technology's flagship audio DAC chip ES9038PRO for dual mono audio digital-to-analog conversion and the GPLL-M1 high-precision phase-locked loop module with ultra-low residual phase noise. Its audio digital signal processing is implemented with the Analog Device SHARC digital audio DSP that is equipped with Gustard's proprietary high-performance anti-aliasing noise algorithm and uses a high-precision floating-point 64-bit algorithm for some key digital signal processing.

The X26 uses the CPLD programmable logic chip, which is equipped with Gustard's self-developed multi-year custom digital logic functions, including clock management, 2nd PLL digital shaping, DOP decoding, PCM/DSD depop switch and other exclusive technologies, which lays a solid foundation for excellent sound quality. It also has two high-quality audio dedicated toroidal transformers to power the digital and analog circuits that let it achieve complete independent power supply without mutual interference.


  • Native fully balanced architecture with no single-ended/differential conversion for complete balanced and single-ended output
  • Self-developed discrete circuit, and the parameters of each stage of the circuit have been carefully adjusted to achieve the best operating point
  • X26 supports 0dB~-90dB, a total of 90 gears of digital volume, with the included high-quality remote control to easily adjust the volume
  • All digital inputs of the X26 support DSD:
    • IIS: DSD64, DSD128, DSD256, DSD512
    • SPDIF, AES/EBU: DSD64, DSD128 (DOP mode)
    • Optical: DSD64 (DOP mode)
    • USB: DSD64, DSD128, DSD256, DSD512 (DSD native Only)
  • Three digital filter algorithms developed by Gustard and can also be turned on.
    • PCM: VIVID (recommended)/Composite/Gentle
    • DSD: 47K/50K/60K/70K
    • NOS mode: This mode is recommended for use with audio player software such as HQplayer with its own oversampling digital filter function and only sampling rate of 176.4KHz and above can be used
  • ESS Technology's USB AUDIO solution, up to PCM768K DSD512
  • Adjustable screen brightness with last settings memory
  • Chassis: 260mm x 330mm x 65mm
  • AC supply voltage mode can be manually switched between 110/115V and 220/230V
  • XLR interface definition: US standard (1 ground, 2 hot, 3 cold)
  • Digital Inputs:
    • IIS, USB: PCM 16-32bit/44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384, 768kHz, DSD64, DSD128, DSD256, DSD512
    • Coaxial: PCM 16-24bit /44.1, 48, 88.2, 96, 176.4, 192, 384 kHz, DOP64, DOP128
    • Optical, AES/EBU: PCM 16-24bit /44.1, 48, 88.2, 96, 176.4, 192 kHz, DOP64

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