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  • Supports MQA decoding
  • Flagship DAC chip AK4499, the audio industry's highest performance
  • THD+N is as low as 0.000068% (-123dB)
  • Dynamic range up to 131dB
  • USB uses XMOS XU216 chip supporting native DSD and 32bit 768kHz
  • The clock system uses 2 ACCUSILICON ultra-low phase noise crystal oscillators
  • Using ALTERA's high-speed CPLD to process the clock and reduce the JITTER
  • Specially designed and enhanced power supply system provides ultra-low noise power supply with output noise as low as 1.5uVrms
  • Supports LVDS level differential I2S reception (using HDMI interface), it can accept the lowest jitter digital audio


USB, Optical, Coaxial, I²S, Bluetooth

Output Level





0.000058%(-124dB) (A-WTD)

Dynamic range

RCA 131dB

XLR 125dB



USB transmission Asynchronization
USB compatibility Windows 7 / 8 / 8.1 / 10
Mac OS, Linux
Bit depth USB I²S - 1bit, 16 - 32bit
Optical/coaxial - 1bit, 16 - 32bit
Sampling rate USB I²S - PCM 44.1 - 768kHz
DSD 2.8224 - 22.5792MHz
Optical/coaxial - PCM 44.1 - 192kHz
Bluetooth specification
UAT 24bit/192kHz (1200kbps/900kbps/600kbps)
LDAC 24bit/96kHz (990kbps/660kbps/330kbps)
aptX-HD 24bit/48 kHz_576kbps
aptX 16bit/44.1 kHz_352kbps
SBC 16bit/44.1 kHz_328kbps
AAC 16bit/44.1 kHz_320kbps
Power Consumption 5W
Standby power <0.5W
Size 220x215x43mm (WxHxD)
Weight 1.53kg
  • SMSL Audio M400 Bluetooth DAC
  • Remote Control

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