SMSL IQ Portable Headphone Amplifier Hi-Res 32bit/768kHz DSD512 Audio Digital to Analog Converter DAC Headphone Amplifier

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Price: $139.99
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  • Description:
  • SMSL IQ is a small size and portable usb dac and headphone amplifier, with 2.5mm balanced and 3.5mm unbalanced headphone output jack.
  • It uses the 2nd generation of XMOS USB audio solution XCore200XU208, supports PCM sampling rate up to 768Khz and DSD 512.Driver is exclusively customized and supports native DSD, which is very advanced in audio range.
  • Uses two dac chips SABRE9018Q2C from ESS company for better channel separation, with ultra-high dynamic range and ultra-low THD+N
  • Using ultra-low pase noise low clock jitter phase-loop circuit which make the sound is more accurate, powered by ultra-low noise LDO for best performance,Built-in big power headphone amplifier and big capacity battery, charged by DC5V

Built-in USB1.1 mode, no need driver, compatible with most mobile phones, supports 24bit/96kHz.
And with USB 2.0 mode, you need to install the driver when connecting to the computer(iOS system does not need to install the driver), supports PCM 32bit/768kHz and DSD512.

Input: Micro USB
Output: Unbalanced 3.5mm/Balanced 2.5mm(4 poles)
Dynamic range:125dB
Frequency responese:10Hz-10kHz
Bit depth:16bit,24bit,32bit,1bit
Sampling rate:44.1kHz, 48kHz,88.2kHz,96kHz,176.4kHz,192kHz,352.8kHz,384kHz,705.6kHz,768kHz DSD64, DSD128, DSD256, DSD512
Headphone amplifier output power: 
Balanced 32ohm 91mW   64ohm 78mW   150ohm 53mv   300ohm 32mW
Unbalanced 32ohm 55mW   64ohm 33mW   150ohm 21mv  300ohm 12mW
Charge: DC 5V

Contents list:
1x IQ portable dac and headphone amplifier
1x USB A to USB B
1x Micro USB to Micro USB
1x Micro USB to type C

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