Short answer: the FiiO KA15. It ranks #1 of 14 usb-c dongle DACs by measured performance, rated 4.6/5, at $99.99; the AudioQuest DragonFly Red ranks #12, rated 2.5/5, and costs $149.95, which makes this an easy call rather than a real tradeoff.
The FiiO KA15 is the better-sounding choice. Audio Science Review measured a SINAD of 115 dB, so its noise and distortion are inaudible. The tradeoff: The headline power figure needs the balanced output in desktop mode, and it falls to 78 mW into 300 ohms, so high-impedance headphones may run short.
Why pick the AudioQuest DragonFly Red: It is a compact USB stick DAC with a 3.5 mm headphone jack and a high resolution digital volume control set from the phone or computer. The tradeoff: Audio Science Review measured a SINAD of 88 dB, a real audible weakness with sensitive in-ear monitors.
Buy the FiiO KA15. It is rated higher than the AudioQuest DragonFly Red and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Headphone Amps and DACs rankings.
Specifications Side By Side
| FiiO KA15 | AudioQuest DragonFly Red | |
|---|---|---|
| Price | $99.99 | $149.95 |
| Ranked | #1 of 14 in USB-C Dongle DACs | #12 of 14 in USB-C Dongle DACs |
| Device Type | USB-C dongle | USB-C dongle |
| SINAD | 115 dB (measured by Audio Science Review) | 88 dB (measured by Audio Science Review) |
| Output Power (32 ohms) | 560 mW (manufacturer rated, balanced, desktop mode) | - |
| Output Power (300 ohms) | 78 mW (manufacturer rated, balanced) | - |
| Headphone Outputs | 3.5 mm, 4.4 mm balanced | 3.5 mm |
| Balanced Output | Yes (4.4 mm) | No |
| Inputs | USB-C | USB-A |
| Outputs | Coaxial S/PDIF (shared 3.5 mm jack) | - |
| DAC Chip | 2 x CS43198 | ES9016 |
| Volume Control | Digital (buttons) | Digital (64-bit, on DAC chip, set from phone/PC) |
| Equalizer | Yes (10-band parametric) | - |
| Dimensions | 2” x 1” x 0.4” (52 x 25 x 11 mm) | 0.7” x 0.5” x 2.4” (19 x 12 x 62 mm) |
| Weight | 0 lbs (21 g) | - |
Related Amp and DAC Comparisons
More worthwhile head-to-heads for FiiO KA15:
- FiiO KA15 vs E1DA 9039S
- FiiO KA15 vs TRN Black Pearl
- FiiO KA15 vs Fosi Audio DS3
- FiiO KA15 vs TANCHJIM Space
- FiiO KA15 vs TempoTec Sonata BHD Pro
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
FiiO KA15: $99.99 Amazon eBay
Pros: Audio Science Review measured a SINAD of 115 dB, so its noise and distortion are inaudible. Its rated 560 mW into 32 ohms from the balanced output in desktop mode is unusually strong for a dongle, enough for most full-size headphones. It adds a 10-band parametric EQ, a 4.4 mm balanced jack and a coaxial digital output, and it rates higher than the Fosi Audio DS3 for the same price.
Cons: The headline power figure needs the balanced output in desktop mode, and it falls to 78 mW into 300 ohms, so high-impedance headphones may run short. The TRN Black Pearl measures slightly cleaner for much less. Volume is set with buttons rather than a knob.
Full FiiO KA15 review and specifications →
| Released | Sep 2024 (2 years ago) |
|---|---|
| Balanced Output | Yes (4.4 mm) |
| DAC Chip | 2 x CS43198 |
| Device Type | USB-C dongle |
| Dimensions | 2” x 1” x 0.4” (52 x 25 x 11 mm) |
| Equalizer | Yes (10-band parametric) |
| Headphone Outputs | 3.5 mm, 4.4 mm balanced |
| Inputs | USB-C |
| Output Power (300 ohms) | 78 mW (manufacturer rated, balanced) |
| Output Power (32 ohms) | 560 mW (manufacturer rated, balanced, desktop mode) |
| Outputs | Coaxial S/PDIF (shared 3.5 mm jack) |
| SINAD | 115 dB (measured by Audio Science Review) |
| Volume Control | Digital (buttons) |
| Weight | 0 lbs (21 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
AudioQuest DragonFly Red: $149.95 Amazon eBay
Pros: It is a compact USB stick DAC with a 3.5 mm headphone jack and a high resolution digital volume control set from the phone or computer.
Cons: Audio Science Review measured a SINAD of 88 dB, a real audible weakness with sensitive in-ear monitors. AudioQuest does not publish a power figure into 32 ohms, and it plugs into USB-A, so phones need an adapter. The Samsung USB-C to 3.5mm Headphone Jack Adapter measures cleaner and rates higher for a fraction of the cost.
Full AudioQuest DragonFly Red review and specifications →
| Balanced Output | No |
|---|---|
| DAC Chip | ES9016 |
| Device Type | USB-C dongle |
| Dimensions | 0.7” x 0.5” x 2.4” (19 x 12 x 62 mm) |
| Headphone Outputs | 3.5 mm |
| Inputs | USB-A |
| SINAD | 88 dB (measured by Audio Science Review) |
| Volume Control | Digital (64-bit, on DAC chip, set from phone/PC) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons