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About the D400 ES
The SMSL D400 ES is a high-end desktop DAC built around the ESS ES9039MSPRO flagship DAC chip with an eight-channel parallel design and built-in MQA hard decoding. It supports USB, optical, coaxial, AES, and I2S inputs, balanced XLR and RCA analog outputs, and includes Bluetooth with LDAC, aptX HD, aptX, SBC, and AAC support. SMSL positions it as a JAS Hi-Res certified DAC with a low-noise internal power supply, CK-03 clock processing, 2nd PLL jitter reduction, a color IPS display, and remote control. It was launched in 2022 and is still sold by SMSL, so it is not no-longer-manufactured.
Specifications
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