DO400 vs DO200 MKII
The DO200 MKII's signal-to-noise is 128 dB against the DO400's 133 dB. Both share bit depth (32-bit), max sample rate (768 kHz), and thd (0.000%).
AI-generated product photo — not official manufacturer imagery.
DigitalDACsHeadphone AmplifiersPre-Amplifiers
Estimated price (community-sourced)
$349 - $424
Around — community and catalog average, updates slowly
About the DO400
The SMSL DO400 is a desktop fully balanced DAC, headphone amplifier, and preamp aimed at high-performance headphone and line-level use. It uses the ESS ES9039MSPRO DAC chip, XMOS XU-316 USB interface, and Qualcomm Bluetooth 5.1 with hi-res codec support. It offers multiple digital inputs, balanced and single-ended headphone outputs, and balanced XLR plus RCA line outputs, with strong power delivery for a wide range of headphones.
Specifications
Digital Audio
DAC capabilities and digital audio processing
- Bit Depth
- 32-bit
- Max Sample Rate
- 768 kHz
- DSD Support
- DSD512
- MQA Support
- Yes
- DAC Chip
- ESS ES9039MSPRO
Analog Output
Analog signal output specifications
- THD
- 0.000%
- SNR
- 133 dB
- Output Voltage
- 5.2V RMS
- Output Impedance
- 0Ω
- Max Output Voltage
- 5.2V RMS
Connectivity
Input and output connections
- Bluetooth
- Yes
- Bluetooth Codecs
- SBC, AAC, aptX, aptX HD, LDAC
- Wi-Fi
- No
- Ethernet
- No
- Digital Inputs
- USB, optical, coaxial, AES/EBU, I2S
- Analog Outputs
- XLR, RCA
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 245 × 42 × 186 mm (W × H × D)
- Weight
- 1.45 kg (3 lbs)
- Available Colors
- silver, black
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions