SMSL M400 DAC User Manual

This manual provides installation, operation, and technical specifications for the SMSL M400 DAC, including remote control usage and menu settings.

Brand: S.M.S.L
Category: Other Electronics
Document type: User Manual
Language: Chinese
Pages: 22
File format: PDF
File size: 6.6 MB
Published: 15 October, 2026
Updated: 15 October, 2026
MD5 checksum: A6B77D210E168A1BB45CB049CB226399
PDF: SMSL M400 DAC User Manual PDF

About this manual

The SMSL M400 is a high-performance digital-to-analog converter (DAC) featuring MQA decoding, a flagship AK4499 DAC chip, and support for high-resolution audio formats via USB, optical, coaxial, I2S, and Bluetooth. It utilizes a low-noise power system and top-tier operational amplifiers to achieve exceptional dynamic range and low distortion. This manual is written in Chinese.

What's inside

Safety Precautions
Warranty Terms
Product Features
Technical Specifications
Remote Control Usage
Component Introduction
Menu Functions
Bluetooth Connection
Factory Reset

Specifications

THD+N	0.000068% (-123dB)
Dynamic Range	131dB (XLR)
SNR	131dB
Power Consumption	5W
Weight	1.53kg

Frequently asked questions

How do I pair the M400 with my mobile phone via Bluetooth?

Switch the input source to Bluetooth or press the Bluetooth button on the remote, then turn on your phone's Bluetooth and search for 'SMSL HDBT' to pair.

What is the warranty period for this product?

The product is covered by a free warranty for one year from the date of purchase under normal usage conditions.

How do I perform a factory reset on the M400?

Press and hold the 'Factory Reset' button on the unit until the screen displays the reset confirmation.

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