The SMSL SU-1 ranks #23 out of 30 total DACs for sound quality. See all Headphone Amps and DACs rankings for every top pick.
Brand: SMSL
Prices on this page were last checked October 11, 2026 at 4:59 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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#23 SMSL SU-1: $84.99 Amazon eBay
Pros: Audio Science Review measured a SINAD of 116 dB, so its noise and distortion are inaudible. It is a compact, inexpensive DAC with USB, optical and coaxial inputs that connects to an amp or powered speakers.
Cons: It has no volume control of its own, so level must be set on the computer or the downstream amp, and there is no balanced output or Bluetooth. The SMSL PS200 PRO measured cleaner at 120 dB for about the same price, and the SMSL SU-2 rates higher for only a little more.
| Released | 2023 (3 years ago) |
|---|---|
| Balanced Output | No |
| DAC Chip | AK4493S |
| Device Type | DAC |
| Dimensions | 3.8” x 1.1” x 3.1” (96 x 27 x 78 mm) |
| Inputs | USB, optical, coaxial |
| SINAD | 116 dB (measured by Audio Science Review) |
| Volume Control | None (PC volume) |
| Weight | 0.4 lbs (195 g) |
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