Fully Balanced Audio Decoder & Headphone Amplifier

  • ES9039MSPRO Decoding Chip
  • Output Power: 6W(16Ω)/3W(32Ω)
  • XMOS XU-316
  • Bluetooth 5.1
  • 4-XLR/4.4mm/6.35mm Headphone Output
  • PLFC Ultra-Low Distortion Circuit
  • PCM 32bit/768kHz
  • Built-In Power Supply
  • DSD Direct Stream Digital DSD512
  • Full-Featured Remote Control
Regular price €499,00
Sale price €499,00 Regular price

Flagship DAC for Superior Sound Quality

Experience audio in its purest form. The SMSL DO400 is equipped with the ES9039MSPRO, ESS company's flagship DAC chip, boasting 8 channels and offering unmatched dynamic range and low distortion.

Revolutionary MQA Technology

Unfold music's deepest layers. With MQA decoding, immerse yourself in a truly accurate 3D sound field, recreating the magic of live performances. Whether through USB, Optical, Coaxial, or AES, the DO400 breathes life into every note.

Powerful Headphone Amplification

Whether you're using high or low impedance headphones, the DO400 is tailored to deliver the optimal power. With output power ranging from 350mW to a staggering 6000mW, every beat resonates.

Comprehensive Connectivity

Six input options, three headphone outputs, and two line outputs. Be it USB, Bluetooth, Optical, Coaxial, AES/EBU, or 12S (HDMI) input, this device adapts to your audio needs. Simultaneously enjoy multiple outputs, including 4-XLR, 4.4mm, and 6.35mm.

State-of-the-Art Bluetooth 5.1

Go wireless without compromise. Powered by Qualcomm's latest Bluetooth 5.1 chip, the DO400 supports LDAC, APTX/HD, SBC, and AAC, ensuring high-resolution audio over the air.

Elegant Design with Functional Remote Control

The suspended display window paired with a retro knob gives the DO400 a vintage charm, while its full-featured remote control enhances user convenience.

Ultra-Low Distortion Circuitry

Achieve audio clarity like never before. With its PLFC ultra-low distortion headphone amp, enjoy distortion levels as low as 0.0001% under a 16Ω load.

Inside the Box

  • 1 x SMSL DO400
  • User Manual

30-Day Return Policy

You may return any non-customized product that is still factory sealed, within 30 days upon receiving it. For items that are damaged, incorrect, or faulty upon delivery, Linsoul will assess the issue and provide a solution accordingly.

Technical Details

RCA/XLR/4.4mm Headphone Jack/6.35mm Headphone Jack/4-Pin XLR Headphone Jack
Line Output Amplitude:
XLR: 5.2VrmsRCA: 2.5Vrms
Headphome Output Power:
6000mW x2(16Ω)700mW x2(300Ω)3000mW x2(32Ω) 350mW x2(600Ω)
XLR: 0.00005%(-125dBXUN-WTD)RCA: 0.00007%(-123dBXUN-WTD)HPA: 0.00009%(-120dBXUN-WTD)
Dynamic Range:
XLR: 133dBRCA: 128dBHPA: 126dBSNR:XLR: 133dBRCA: 128dBHPA: 126dB
Output Impedance:
Line out: 100ΩHPA out: near 0Ω
HPA High Gain:
Balanced: +20dBUnbalanced: +14dB
USB Transmission
USB Compatibility
Windows 7/8/8.1/10/11(Needs Driver)Mac OSX10.6以上、Linux(Driverless)
Sampling rate & Bit Width:
USB: PCM 44.1-708kHz(32bit)DSD: 2.8224-22.5792MHz (1bit)Opt/Coax: 44.1-192kHz(24bit)
MQA Decoder
USB / Optical / Coaxial / AES
MQA-CD Decoder
Optical / Coaxial / AES
Support SBC,AAC,aptX,aptX HD,LDAC
Power Consumption
Standby Powor

Authentic Products

Linsoul Audio is the authorized distributor. All products are authentic and genuine.

Worldwide Free Shipping

We are located in China but send our products worldwide for free. T&Cs apply.

1 Year Warranty

We provide 1 year warranty for the all products except the cables and accessories*.

Online Support

Need help?, we are here to assist you
Monday - Friday: 09:00 – 18:00 (UTC+8)

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30-Day Return Policy

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