SMSL D400ES Desktop DAC


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Looks to kill, specs to thrill

The SMSL D400ES DAC turns heads with its stylized all-aluminum chassis, but it's what’s inside that counts: a next gen ESS flagship DAC chip, full MQA decoding, and incredible specs–133dB dynamic range and 0.00005% THD+N.

Third gen USB solution

A third-gen XMOS XU316 USB controller provides support for 32-bit/768kHz PCM and DSD512 transmission.

Next gen ESS flagship DAC chip

The next generation ESS flagship is here. Providing both incredible specs and features, the ES9039MSPRO boasts a built-in MQA renderer, 32-bit/768kHZ PCM decoding, and 133dB dynamic range.

Low-noise power processing

With multiple low-noise regulated power supplies, the D400ES provides a stable, reliable, and low-noise system that contributes to the DAC’s incredible 0.00005% THD+N.

MQA full decoding

The D400ES provides full MQA decoding, fully expanding the sound file to provide the best sound quality. At this level, you’ll hear the original sound created by the artist in the recording studio.

Looks are everything

Housed in chamfered high-grade aluminum, the D400ES looks gorgeous, while remaining utterly protected.

Gorgeous full-color display

Check the settings and dive into the menu using the full-color display. Protected by a fully-laminated tempered glass display panel, it provides high light transmittance that can be seen from across the room (or dimmed to suit your needs).

Bluetooth 5.0

The D400ES supports high-end Bluetooth codecs like LDAC, Qualcomm aptX, and aptX HD. With playback support for 24bit tracks and transmission up to 50 feet away, it’ll help you cut cords without sacrificing quality.

Product highlights

  • JAS Hi-res certification
  • MQA certification
  • MQA-CD certification
  • ESS ES9039MSPRO chip
  • 0.00005% THD+N
  • Eight-channel parallel circuit design
  • XMOS XU316
  • DSD512
  • PCM 32-bit/768kHz
  • Up to 7 modes of digital filters
  • Equipped with a full-featured remote control


  • Inputs: USB, optical, coaxial, Bluetooth, I2S, AES
  • Outputs: RCA, XLR
  • Line output amplitude
    • XLR: 5.2Vrms
    • RCA: 2.5Vrms
  • THD+N: 0.00005%
  • Dynamic range: 133dB
  • SNR: 133dB
  • USB transmission: 2.0 asynchronization 
  • USB compatibility: Windows 7/8/8.1/10 (needs driver), Mac OSX 10.6 or later, Linux (driverless)
  • MQA decoder: USB, optical, coaxial, AES
  • MQA-CD decoder: Optical, coaxial, AES
  • Sampling rate and bit width
    • USB PCM: 44.1-768kHz (32bit)
    • DSD: 2.8224-22.5792MHz (1bit)
    • Optical/coaxial: 44.1-192kHz (24bit)
    • DoP: DoP256(USB), DoP64(Optical/coaxial)
  • Bluetooth
    • Version: 5.0
    • LDAC: 24bit/96kHz
    • aptX-HD: 24bit/48kHz
    • aptX: 16bit/44.1kHz
    • SBC: 16bit/44.1kHz
    • AAC: 16bit/44.1kHz
  • Power consumption: <10W
  • Standby power: <0.5W
  • Size: 9.4” x 7.4” x 1.69” (240 x 188 x 43mm)
  • Weight: 3.97lbs (1.8kg)

SMSL D400ES Desktop DAC User Manual Download

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