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SMSL DO400 Full Balance DAC/Amp / Purchased April 2024 Used
Product Details
‼️ Please Read Overview and Profile Before Purchasing ‼️
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‼️ Important Usage Notes ‼️
• If you experience audio dropouts or noise when switching music, resolve it with the XMOS always on option.
• A conversion plug is required to use the 3.5mm jack.
• Line out output is for experienced users only.
• The power cable has a 3-prong plug, so a conversion plug or a Japanese power cable is required separately.
SMSL DO400
Full Balance DAC & Headphone Amplifier Combo Unit
Color: Black
Purchased new in April 2024 from Amazon (AOSHIDA Audio-JP: SMSL Authorized Dealer) as a genuine domestic product. (Purchase price: ¥69,000)
■ Reason for Selling
Selling due to a change in system configuration.
■ Product Features
This is a high-performance model equipped with ESS's flagship DAC chip, the ES9039MSPRO, which excels in its D/A conversion capabilities. It features an extremely clear and high-resolution sound.
• Versatile Inputs: USB, Optical, Coaxial, Bluetooth (LDAC compatible), AES/EBU, IIS
• Abundant Outputs: RCA/XLR (Line Out), 4.4mm/6.35mm/4-XLR (Headphone)
• Supports MQA full decode and DSD512.
This single unit can handle everything from a high-end headphone setup to a preamplifier for a speaker system.
■ Condition
【Exterior】
No protective film on the display, no noticeable scratches.
【Operation】
Only the front 4.4mm jack has been used. Knob operation is fine.
Please note that the remote control, Bluetooth antenna, and rear outputs have not been used and their operation has not been tested.
【Environment】
Used in a non-smoking environment.
Used without altering voltage settings.
■ Accessories
All accessories from the original purchase are included.
• Main Unit
• Remote Control
• Power Cable
• USB Cable
• Bluetooth Antenna
• User Manual
• Original Box
#SMSL #DAC
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.



