Short answer: the Fosi Audio ZD3. Both are rated 4.8/5 (#15 and #17 of 30 DACs), and the Fosi Audio ZD3 costs $179.99 against $319 for the SMSL D200, and with measured performance even, the cheaper one is the better buy.
The case for the Fosi Audio ZD3: Audio Science Review measured 117 dB SINAD, so its noise and distortion are transparent. Watch for: Its SINAD is a few dB behind similarly rated DACs like the SMSL D-6S, though both are transparent.
The case for the SMSL D200: Audio Science Review measured a SINAD of 116 dB, so its noise and distortion are inaudible. It supports LDAC Bluetooth, which the Fosi Audio ZD3 lacks. Watch for: The SMSL D-6S rates the same and measures cleaner at 122 dB for less.
Buy the Fosi Audio ZD3. Both are rated the same, and it costs $139.01 less than the SMSL D200.
Want more options? Browse the full Headphone Amps and DACs rankings.
Specifications Side By Side
| Fosi Audio ZD3 | SMSL D200 | |
|---|---|---|
| Price | $179.99 | $319.00 |
| Ranked | #15 of 30 in DACs | #17 of 30 in DACs |
| Device Type | DAC | DAC |
| SINAD | 117 dB (measured by Audio Science Review) | 116 dB (measured by Audio Science Review) |
| Balanced Output | Yes (XLR line out) | Yes (XLR line out) |
| Inputs | USB, HDMI ARC, optical, coaxial, Bluetooth | USB, optical, coaxial, Bluetooth |
| Outputs | RCA, XLR | RCA, XLR |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | ES9039Q2M | ROHM BD34352EKV |
| Volume Control | Digital preamp (remote) | Hardware knob and remote (preamp mode) |
| Dimensions | - | 7.9” x 1.9” x 7.8” (200 x 47.9 x 197.9 mm) |
| Weight | - | 2.7 lbs (1,214 g) |
Related Amp and DAC Comparisons
More worthwhile head-to-heads for Fosi Audio ZD3:
- Topping D50 III vs Fosi Audio ZD3
- Fosi Audio ZD3 vs SMSL D-6S
- Fosi Audio ZD3 vs SMSL SU-2
- Fosi Audio ZD3 vs SMSL SU-6
- Fosi Audio ZD3 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
Fosi Audio ZD3: $179.99 Amazon eBay
Pros: Audio Science Review measured 117 dB SINAD, so its noise and distortion are transparent. It has unusually broad connectivity, with USB, HDMI ARC from a TV, optical, coaxial and aptX HD Bluetooth inputs, plus RCA and XLR outputs and a remote controlled digital preamp for driving powered speakers directly. It matches the rating of the SMSL D-6S for a bit less.
Cons: Its SINAD is a few dB behind similarly rated DACs like the SMSL D-6S, though both are transparent. Bluetooth lacks LDAC, which the SMSL D-6S includes.
Full Fosi Audio ZD3 review and specifications →
| Released | Sep 2024 (2 years ago) |
|---|---|
| Balanced Output | Yes (XLR line out) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD |
| DAC Chip | ES9039Q2M |
| Device Type | DAC |
| Inputs | USB, HDMI ARC, optical, coaxial, Bluetooth |
| Outputs | RCA, XLR |
| SINAD | 117 dB (measured by Audio Science Review) |
| Volume Control | Digital preamp (remote) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
SMSL D200: $319.00 Amazon eBay
Pros: Audio Science Review measured a SINAD of 116 dB, so its noise and distortion are inaudible. It feeds powered speakers or an amp through RCA or balanced XLR outputs, and a volume knob and remote let it work as a preamp. Inputs cover USB, optical, coaxial and Bluetooth with LDAC, aptX HD and AAC.
Cons: The SMSL D-6S rates the same and measures cleaner at 122 dB for less. Its SINAD trails the 123 dB of the Topping D70 Pro SABRE, though both are well past the point of audibility. At 1,214 g, it is a full-size box.
Full SMSL D200 review and specifications →
| Released | Aug 2025 (1 year ago) |
|---|---|
| Balanced Output | Yes (XLR line out) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD, LDAC |
| DAC Chip | ROHM BD34352EKV |
| Device Type | DAC |
| Dimensions | 7.9” x 1.9” x 7.8” (200 x 47.9 x 197.9 mm) |
| Inputs | USB, optical, coaxial, Bluetooth |
| Outputs | RCA, XLR |
| SINAD | 116 dB (measured by Audio Science Review) |
| Volume Control | Hardware knob and remote (preamp mode) |
| Weight | 2.7 lbs (1,214 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons