Short answer: the Topping D50 III. It ranks #1 of 30 DACs by measured performance, rated 4.9/5, at $229; the SMSL DO200 MKII ranks #12, rated 4.8/5, and costs $398.65, so there is not much of a tradeoff to weigh.
Why pick the Topping D50 III: Audio Science Review measured 123 dB SINAD, so its noise and distortion are transparent. Watch for: Balanced output uses 6.35 mm TRS jacks rather than XLR, so XLR gear needs adapter cables.
Why pick the SMSL DO200 MKII: Audio Science Review measured a SINAD of 121 dB, so its noise and distortion are inaudible. It supports aptX HD Bluetooth, which the Topping D50 III lacks. The catch: The SMSL D-6S matches its rating for about half the price, so the extra money mostly buys more inputs.
Buy the Topping D50 III. It is rated higher than the SMSL DO200 MKII and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Headphone Amps and DACs rankings.
Specifications Side By Side
| Topping D50 III | SMSL DO200 MKII | |
|---|---|---|
| Price | $229.00 | $398.65 |
| Ranked | #1 of 30 in DACs | #12 of 30 in DACs |
| Device Type | DAC | DAC |
| SINAD | 123 dB (measured by Audio Science Review) | 121 dB (measured by Audio Science Review) |
| Balanced Output | Yes (TRS line out) | Yes (XLR line out) |
| Inputs | USB-C, optical, coaxial, Bluetooth | USB, optical, coaxial, AES/EBU, I2S, Bluetooth |
| Outputs | RCA, 6.35 mm TRS balanced | RCA, XLR |
| Bluetooth Codecs | SBC, LDAC | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | 2 x ES9039Q2M | 2 x ES9068AS |
| Volume Control | Digital (joystick, remote) | - |
| Equalizer | Yes (10-band parametric) | - |
| Dimensions | 4.9” x 1” x 5.2” (125 x 26 x 131 mm) | 8.3” x 1.7” x 7.3” (210 x 43 x 185 mm) |
| Weight | - | 2.6 lbs (1,200 g) |
Related Amp and DAC Comparisons
More top alternatives to Topping D50 III:
- Topping D50 III vs SMSL D-6S
- Topping D50 III vs Fosi Audio ZD3
- Topping D50 III vs SMSL D200
- Topping D50 III vs SMSL SU-6
- Topping D50 III vs Soncoz LA-QXD1
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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The Two Amps and DACs In Full
Topping D50 III: $229.00 Amazon eBay
Pros: Audio Science Review measured 123 dB SINAD, so its noise and distortion are transparent. It packs USB-C, optical, coaxial and LDAC Bluetooth inputs, a remote controlled volume, 10 band parametric EQ and balanced TRS outputs into a compact chassis for an amp or powered speakers. It matches the rating of the Topping D900 for a small fraction of the price.
Cons: Balanced output uses 6.35 mm TRS jacks rather than XLR, so XLR gear needs adapter cables. Bluetooth lacks aptX and AAC, offering only SBC and LDAC.
Full Topping D50 III review and specifications →
| Released | Mar 2024 (2 years ago) |
|---|---|
| Balanced Output | Yes (TRS line out) |
| Bluetooth Codecs | SBC, LDAC |
| DAC Chip | 2 x ES9039Q2M |
| Device Type | DAC |
| Dimensions | 4.9” x 1” x 5.2” (125 x 26 x 131 mm) |
| Equalizer | Yes (10-band parametric) |
| Inputs | USB-C, optical, coaxial, Bluetooth |
| Outputs | RCA, 6.35 mm TRS balanced |
| SINAD | 123 dB (measured by Audio Science Review) |
| Volume Control | Digital (joystick, remote) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
SMSL DO200 MKII: $398.65 Amazon eBay
Pros: Audio Science Review measured a SINAD of 121 dB, so its noise and distortion are inaudible. It accepts USB, optical, coaxial, AES/EBU, I2S and Bluetooth with LDAC, aptX HD and AAC, and feeds an amp or powered speakers over RCA or balanced XLR. It matches the rating of the Gustard X18 for much less.
Cons: The SMSL D-6S matches its rating for about half the price, so the extra money mostly buys more inputs. It has no headphone output, and at 1.2 kg in a wide chassis it needs real shelf space.
Full SMSL DO200 MKII review and specifications →
| Released | Oct 2022 (4 years ago) |
|---|---|
| Balanced Output | Yes (XLR line out) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | 2 x ES9068AS |
| Device Type | DAC |
| Dimensions | 8.3” x 1.7” x 7.3” (210 x 43 x 185 mm) |
| Inputs | USB, optical, coaxial, AES/EBU, I2S, Bluetooth |
| Outputs | RCA, XLR |
| SINAD | 121 dB (measured by Audio Science Review) |
| Weight | 2.6 lbs (1,200 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons