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Item specifics
  • Output Power: 32ohm/108mW,64ohm/104mW,150ohm/86mW/300ohm/57mW
  • Type: Professional Amplifier
  • Package: Yes
  • Output Type: 2.5mm/6.35mm/RCA
  • Input Type: USB/optical/Coaxial
  • Channels: 2 (2.0)
  • Model Number: SMSL M9
  • THD + N: 0.0004%
  • Dynamic range: 115dB
  • SNR: 110dB
  • Channel separation: 110dB
  • USB support: Windows 7/8/8.1/10;Mac OSX10.6 above
  • Type: Audio decoder+Headphone amplifier
  • Output jack: 2.5mm/6.35mm/RCA
  • Input jack: USB/optical/Coaxial
  • DAC : AK4490 X 2
  • Headphone amplifier power: 32ohm/108mW,64ohm/104mW,150ohm/86mW/300ohm/57mW
Product Description

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SMSL M9 32bit/768kHz DSD512 XMOS HiFi DAC Decoder USB/Optical/Coaxial Headphone amplifier




Name: SMSL  M9 Decoder+Headphone Amplifier

Digital Decoder



Output level


Dynamic range



Channel separation 110dB
USB support

Windows7/8/8.1/10;Mac OSX10.6 above

Coaxial/Optical sampling rate 44.1-192kHz
USB PCM sampling rate

44.1- 768kHz

DAC Chip

AK4490 x 2

Headphone AMP Power


Package Includes:
Package Includes:

1 x SMSL M9


1×USB cable

1×The power adapter


 Design Architecture:


     DAC AK4490 x 2

     EVOL PGA2311 x 2

     HPA TPA6120A2 x 2

     OPA OPA1612 x 5

     DIR & ASRC CS8422

sampling rate PCM support to 768kHz, DSD512 hard solution;

Support native DSD decoding;

DAC uses two AK4490, HIFI fidelity plus full balance;
The output section uses two Texas Instruments advanced headphone amplifier IC TPA6120A2;
Built-in asynchronous up-conversion function to eliminate clock jitter;

designed with 2.5mm balanced output, easy access to balance earplugs, you can then take the cable to connect four-core XLR headphones;

The audio part uses two ultra-low phase noise crystal;
high-precision CNC aluminum alloy shell










Contact us:
* If you have any request please don\'t hesitate to contact us at first time,we will help you and solve your issue within 24 hours.
* All emails will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your email and we will reply you as soon as possible. 
* Warranty services are for replacements only,any problem please kindly email us frist,we will accept your advise & request.


1. We can accept T/T ,Escrow and Western Union and Money Order,the best way is direct online payment,you can choose yourself. If you want other payment terms please let us konw before when you order.
2. Full payment must be made within 7 days after placing your order, or the order will be invalid or canceled by the system.
3. Make sure that you have completed all the detailed information like contact person,address,post code and telephone number when filling in your buyer\'s information.


1. If the payment is not available, your order will be closed automatically.
2. The buyer are responsible for any insurance ,problems and damage which caused by shipping service such accidents, delays or other issues. Besides the buyer should to be responsible for any tax and/or duty charged by their country. And the goods will be Marked as "gift" or "sample" for your easy customs clearance and less charge. (if you want to declare the goods as other item name, or specify an value for custom, please inform us when making the order)

1. All the goods are inspected before shipment, so if you are not satisfied with the purchase, you can exchange the items in one week and you must contact us within 24 hours of the receipt of your purchase.Please contact us before open dispute, we can refund you.
2. The shipping and handling charge is not refundable and customer should be responsible for all the charges of returning and reshipping.
3. All return items must be in its original conditions, including box and accessories. Men made defects are not guaranteed, such as broken, scratched and so on.
4. For any items,please send by EMS or your local post when send back.

1. Buyer\'s early confirmation will be highly appreciated after receiving the items.
2. Since your feedback is very important to our business\'s development, we sincerely invite you to leave positive feedback for us if you are satisfied with our product and service. It\'ll just take you 1 minute,but this 1 minute has the extremely vital significance to us.

3. Please contact us before leaving any negative or neutral feedback. We will work with you to solve any problems.Thank you for your understanding!

Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 20cm x 15cm x 10cm (7.87in x 5.91in x 3.94in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 20cm x 15cm x 10cm (7.87in x 5.91in x 3.94in)
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