SMSL M3 DAC USB/Optical/ Coaxial Function Hi-Fi Audio Decoder All-in-one Amplifier.
SMSL M3 DAC USB/Optical/ Coaxial Function Hi-Fi Audio Decoder All-in-one Amplifier.
SMSL M3 DAC USB/Optical/ Coaxial Function Hi-Fi Audio Decoder All-in-one Amplifier.
SMSL M3 DAC USB/Optical/ Coaxial Function Hi-Fi Audio Decoder All-in-one Amplifier.
SMSL M3 DAC USB/Optical/ Coaxial Function Hi-Fi Audio Decoder All-in-one Amplifier.

S.M.S.L M3 Desktop DAC & Headphone Amplifier

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Regular price $83.99 USD
Sale price $83.99 USD Regular price
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Measuring 3.75 by 3 inches and weighing just 7.5 ounces, the SMSL M3 USB DAC/amp helps you achieve better sound without taking up too much space in your bag or on your desk. Equipped with the CS4398 DAC chip, it has a 24 bit/192 kHz sample rate via optical and coaxial, and a 24 bit/96 kHz sample rate via USB. Power the M3 with your computer, Android phone, or Android tablet using included Micro-USB to Micro-USB cable in the “IN 1” port, and plug into the second “IN DC” port when you’re looking for more power.

1, M3 can be directly powered by computer, Android tablet PC and Android mobile phone(This function is not available for Apple Ipad or iphone). With purified power circuit;
2, Externally enhanced power input jack using DC 5V, Maximum power is 1.5W. Users can connect with power bank to work this product which can generate better sound quality. XIAOMI 10000ma power bank can work up to 20H with M3;
3, 24 bit asynchronous USB input, 24bit/192KHZ advanced decoding chip is CS4398;
4, Big power headphone amplifier almost can be compatible with all of Hi-Fi headphone;
5, Industrial design input and full frequency sampling rate is clear to see from front panel;
6, High quality aluminum alloy shell, solid aluminum buttons and knobs;
7, The high parameters and highly integrated product will occupy it's market for high cost performance.


Aluminum alloy shell, solid aluminum buttons and knobs

DAC chip: CS4398

Channels: 2

Output power level: 1.9 Vrms

THD+N: < 0.006%

Dynamic range: > 112 dB

SNR: > 107 dB

Channel separation: > 105 dB

Sample rate, USB: 96 kHz (24 bit)

Sample rate, optical and coaxial: 192 kHz (24 bit)

Output power, 108 mw: 32 ohm at THD 0.1%

Output power, 85 mW: 64 ohm at THD 0.1%

Output power, 49 mW: 150 ohm at THD 0.001%

Output power, 24 mW: 300 ohm at THD 0.001%

Inputs: USB, optical, coaxial

Outputs: Line, headphone amp

Dimensions, excluding protrusions: 3.75 x 3 x 1.2 in (9.5 x 7.6 x 3 cm)

Weight: 7.5 oz (212 g)

Contents list:

Micro-USB to Micro-USB cable

Micro-USB to Micro-B cable

3.5 mm to ¼ in gold-plated adapter


Shipping Fees

Worldwide Free Shipping on SHENZHENAUDIO, Please allow 1-3 business days for conduct Quality Control in order to ensure the products quality.

If a customer would like the order reshipped, they’ll be charged a reshipment fee. Customers may also be subject to a restocking fee of up to 20 percent of the product cost.

Which Couriers To Use?

Given the amount of shipping partners we work with and the vast coverage area we serve, there are likely regions with much longer transit times than others. If you have any feedback, suggestions, or problems with the courier of your shipment, please feel free to submit a support ticket via the "Contact Us" button below.

Our goal is to provide our customers with the best shipping experience possible at a reasonable cost. This is why we constantly negotiate with existing shipping partners for lower rates and actively test new couriers for potential opportunities.

PO boxes or APO/FPO

The ability to ship to PO boxes or an APO/FPO address depends on the item's weight. If an item weighs more than 9 pounds, we won’t be able to ship to these addresses because of our current courier agreements.

To determine if your order is eligible for shipment to PO boxes or an APO/FPO address, please contact SHENZHENAUDIO Support.

Estimated Delivery Time

For customers in the continental United States:
5 to 14 business days from the date of shipping

For customers in Hawaii and Puerto Rico:
2 to 4 weeks from the date of shipping
International customers can expect longer shipping times, depending on the country in which they live:

Canada: 1 to 3 weeks from the date of shipping
Australia, New Zealand, Germany, France, and the UK: 2 to 4 weeks from the date of shipping
Other countries not listed above: 3 to 6 weeks from the date of shipping

Please keep in mind that these are rough estimates and shipments can be delayed due to unforeseen circumstances, like postal strikes or severe weather.

If, for some reason, you don’t receive your order within the estimated time frame provided above and suspect that it might be lost in transit, please submit a support ticket from your transactions page and we can look into the order with the courier. Lost-in-transit requests must be submitted to SHENZHENAUDIO Support within 4 months of the date of shipping or before the courier archives the tracking information.

Easy 30-Day Return Policy

If you are dissatisfied with your purchase for any reason, you may return it to SHENZHENAUDIO within 30 days of the received date, subject to the conditions and exclusions below.

Eligibility Conditions

Please read conditions below. If all conditions are not met, SHENZHENAUDIO reserves the right to refuse the return. All returned items must be in new condition, in their original unaltered box (including an intact UPC code) and must include all packing material, blank warranty cards, manuals and accessories. SHENZHENAUDIO can only refund the original purchase price. Shipping and handling fees are nonrefundable.

Defective or Damaged Items

Defective items may be repaired, exchanged or refunded at our discretion for the same model or manufacturer's equivalent model.


Depending on where you live, the time it may take for your exchanged product to reach you, may vary. Please allow 3-5 business days for mail-in exchanges to be processed.

Refunds & Credits

Once we receive and inspect your item(s), we will credit your account. Please allow 5-7 days for a credit to appear on your account. In most cases, we will issue your refund in the same way you made the original purchase. Please note: we can only refund the original purchase price. Shipping and handling fees are nonrefundable.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.


To return your product, you should mail your product to: 4F 405, Building F, No.2 Shangxue Science and Technology North, Bantian Street, Longgang Dist, ShenZhen, 518129 Guangdong, China

If you’ve done all of this and you still have not received your refund yet, please contact us at