SMSL D400 EX Dual AK4499EX 5

SMSL D400 EX Dual AK4499EX

SMSL D400 EX is a brand new flagship Desktop DAC designed with the latest-generation AK4499EX 32-bit flagship DAC chips. It adopts the 3rd generation XMOS XU316 USB Processor along with 9 high-end OPAMP chips for unprecedented audio performance. The D400 EX supports all leading audio formats with support for decoding high-resolution PCM, native DSD, and MQA audio signals. It’s an MQA and MQA-CD-certified premium Desktop DAC.

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SMSL has equipped the D400 EX with a flagship-grade Dual DAC chipset featuring two AK4499EX latest-generation DAC Chips from AKM Technologies. D400 EX also houses 1 AK4191 Chip to complement the AK4499EX DACs. The AK4499EX is a 32-Bit flagship DAC chip from AKM.

SMSL D400 EX Dual AK4499EX

In order to get the best out of the flagship DAC Chipset present on the D400 EX, SMSL has featured an XU316 USB processor from XMOS Technologies. It enables the D400 Ex to decode high-resolution 32-Bit/768kHz PCM signals and native DSD512 audio signals.

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SMSL D400 EX supports high-resolution wireless Bluetooth connectivity for signal input. It adopts the latest QCC5125 Bluetooth processor from Qualcomm that supports high-res LDAC, AptX HD, AptX, SBC, and AAC transmission protocols. LDAC allows the users to stream at 24-bit/96kHz bitrate.

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SMSL D400 EX supports true MQA and MQA CD audio signal decoding. D400 EX has passed the certification for both MQA & MQA CD ensuring top-quality studio-grade performance with the DAC.

SMSL D400 EX Dual AK4499EX 3


  • Flagship AKM DAC Chipset.
  • Dual AK4499EX DAC Chips.
  • 3rd-Generation XMOS XU316 USB Processor.
  • Supports high-resolution 32-Bit/768kHz PCM and Native DSD512 Audio Signals.
  • High-Resolution Bluetooth connectivity.
  • LDAC, AptX HD, AptX, SBC, AAC Transmission Codec support.
  • Supports IIS, USB, Optical, Coaxial, and Bluetooth Inputs.
  • 9 Pieces of high-end Dual OPAMPs.
  • MQA & MQA CD Certifications.
  • Low-Jitter CK-03 Clock Architecture.
  • Up to 7 different digital PCM filters.
  • Full-featured Remote control.
  • Easy to upgrade firmware.

Price: $959.99