Short answer: the JCALLY JM20MAX. It ranks #8 of 14 usb-c dongle DACs by measured performance, rated 3.8/5, at $39.99; the Fosi Audio DS1 ranks #10, rated 3.4/5, and costs $55.99, so there is not much of a tradeoff to weigh.
The JCALLY JM20MAX is the better-sounding pick. Audio Science Review measured 113 dB SINAD, which is clean for nearly all listening. The tradeoff: The maker doesn’t publish a 32 ohm power figure, so its ability to drive harder headphones is unknown.
What the Fosi Audio DS1 does well: Audio Science Review measured a SINAD of 104 dB, which is clean for nearly all listening. The tradeoff: Fosi Audio doesn’t publish a 32 ohm power figure, so it is hard to know which headphones it can drive well.
Buy the JCALLY JM20MAX. It is rated higher than the Fosi Audio DS1 and costs less, which makes it the one to get unless you need something the other one does better.
Want more options? Browse the full Headphone Amps and DACs rankings.
Specifications Side By Side
| JCALLY JM20MAX | Fosi Audio DS1 | |
|---|---|---|
| Price | $39.99 | $55.99 |
| Ranked | #8 of 14 in USB-C Dongle DACs | #10 of 14 in USB-C Dongle DACs |
| Device Type | USB-C dongle | USB-C dongle |
| SINAD | 113 dB (measured by Audio Science Review) | 104 dB (measured by Audio Science Review) |
| Headphone Outputs | 3.5 mm | 3.5 mm, 4.4 mm balanced |
| Balanced Output | No | Yes (4.4 mm) |
| Inputs | USB-C | USB-C |
| DAC Chip | CS43131 | ES9038Q2M |
| Weight | 0 lbs (6.5 g) | 0.1 lbs (38 g) |
| Volume Control | - | Digital (buttons) |
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- Fosi Audio DS2 vs JCALLY JM20MAX
- FiiO KA11 vs JCALLY JM20MAX
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
JCALLY JM20MAX: $39.99 Amazon eBay
Pros: Audio Science Review measured 113 dB SINAD, which is clean for nearly all listening. At 6.5 g it is a tiny USB-C dongle that adds a 3.5 mm jack to a phone or laptop for little money.
Cons: The maker doesn’t publish a 32 ohm power figure, so its ability to drive harder headphones is unknown. There is no balanced output, and the Fosi Audio DS2 rates higher with a 4.4 mm balanced jack, while the FiiO KA11 matches its rating for less.
Full JCALLY JM20MAX review and specifications →
| Balanced Output | No |
|---|---|
| DAC Chip | CS43131 |
| Device Type | USB-C dongle |
| Headphone Outputs | 3.5 mm |
| Inputs | USB-C |
| SINAD | 113 dB (measured by Audio Science Review) |
| Weight | 0 lbs (6.5 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Fosi Audio DS1: $55.99 Amazon eBay
Pros: Audio Science Review measured a SINAD of 104 dB, which is clean for nearly all listening. It offers both a 3.5 mm output and a 4.4 mm balanced output in a light 38 g body with button volume control.
Cons: Fosi Audio doesn’t publish a 32 ohm power figure, so it is hard to know which headphones it can drive well. It rates lower than the Fosi Audio DS2, which costs about the same and measured transparent at 117 dB, and the FiiO KA11 rates higher for less.
Full Fosi Audio DS1 review and specifications →
| Released | Aug 2022 (4 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm) |
| DAC Chip | ES9038Q2M |
| Device Type | USB-C dongle |
| Headphone Outputs | 3.5 mm, 4.4 mm balanced |
| Inputs | USB-C |
| SINAD | 104 dB (measured by Audio Science Review) |
| Volume Control | Digital (buttons) |
| Weight | 0.1 lbs (38 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons