This is an Apos Certified product. That means it's refurbished, like new, eligible for our 45-day return policy, carries an Apos Certified One-Year Warranty, and ships from our US facility. Currently, Apos Certified products are only available to customers with a US shipping address. We appreciate your understanding as we aspire to expand our offerings to a broader audience in the future.

Introducing the budget king

Introducing the SMSL SU-1 MQA Audio DAC, a compact and powerful digital-to-analog converter (DAC) that offers high-resolution audio, MQA technology, and a wide range of connectivity options for an immersive listening experience.

Hi-Res audio and MQA

The SMSL SU-1 supports Hi-Res Audio, featuring the latest MQA technology, and MQA CD playback. With its advanced decoding capabilities, it ensures the highest quality audio reproduction, perfect for audiophiles seeking true-to-life sound.

XMOS XU-316 and AKM AK4493S

Equipped with the XMOS XU-316 chipset and AKM AK4493S DAC, the SU-1 delivers PCM 32-bit/768kHz and DSD512 support, resulting in exceptional sound quality, detail, and accuracy.

CNC aluminum alloy housing

The SU-1 features a CNC aluminum alloy housing, ensuring durability and excellent heat dissipation. This compact design is perfect for those seeking a high-quality DAC without taking up too much space.

Versatile connectivity

With a variety of inputs, including coaxial, optical, and USB, the SU-1 provides flexible connectivity options to suit your audio setup. The single-ended line out allows for easy integration with your existing audio equipment.

Product Highlights

• Hi-Res Audio and MQA support
• XMOS XU-316 chipset
• AKM AK4493S DAC
• PCM 32-bit/768kHz and DSD512 support
• CNC aluminum alloy housing
• Single-ended line out
• Coaxial, optical, and USB inputs
• Ultra mini design
• 121dB dynamic range
• 121dB SNR

Specs

• Inputs: USB, optical, coaxial
• Output level: 2.0Vrms
• THD+N: 0.00013%
• Dynamic range: 121dB
• SNR: 121dB
• USB transmission: Asynchronous transmission
• USB compatibility: Windows 7/8/8.1/10/11, Mac OS X10.6 and above, Linux
• Max bit depth and sampling rate: 32bit/768kHz PCM USBM, 22MHz DSD USB, 24bit/192kHz Optical/Coaxial
• MQA: 384kHz
• Power consumption: <5W
• Standby power: <0.1W
• Weight: 0.43lbs
• Size: 3.7" x 1" x 3" (96 x 27 x 78mm)

What's Included

• SMSL SU-1 MQA Audio DAC
• Power adapter
• USB cable
• User manual