Short answer: the Fatfreq Hayabusa. It ranks #268 of 1291 in-ear headphones by sound quality, rated 4.2/5, at $1,999. The Lime Ears Incognita ranks #369, rated 4.1/5, at $1,699, $300 cheaper, which does not close the gap in sound quality.
Why pick the Fatfreq Hayabusa: A preference score of 76 in crinacle’s measurement places its tuning reasonably close to the Harman target most listeners prefer. The tradeoff: The response is uneven, at 1.94 dB standard deviation from target, so some frequency regions stand out or fall back.
The case for the Lime Ears Incognita: A broadly balanced tuning with a preference score of 75 against the Harman target. Watch for: Treble about 3 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the Fatfreq Hayabusa. It is rated higher for sound quality, and the $300 saving on the Lime Ears Incognita is not enough to make up the difference.
Still deciding? The full Headphones rankings cover every ranked option.
A preference score of 76 in crinacle’s measurement places its tuning reasonably close to the Harman target most listeners prefer.
FATfreq $1,999.00 eBay
A broadly balanced tuning with a preference score of 75 against the Harman target.
Lime Ears $1,699 eBayPrices on this page were last checked October 16, 2026 at 5:46 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Fatfreq Hayabusa | Lime Ears Incognita | |
|---|---|---|
| Price | $1,999.00 | $1,699 |
| Ranked | #268 of 1291 in In-Ear Headphones | #369 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 76 (measured by crinacle, via AutoEQ) | 75 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.94 dB standard deviation | 1.78 dB standard deviation |
| Tonal Tilt | +0.29 (negative is warmer, positive brighter) | -0.53 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Sub-bass Extension | - | Within 6 dB of target down to 20 Hz (-0.7 dB at 30 Hz) |
| Driver Type | - | Hybrid |
| Drivers | - | 1 x dynamic, 4 x balanced armature |
Related Headphone Comparisons
More top alternatives to Fatfreq Hayabusa: