Short answer: the Fatfreq Sakura. It ranks #633 of 1291 in-ear headphones by sound quality, rated 3.7/5, at $1,499. The 64 Audio Solo ranks #719, rated 3.6/5, at $1,399, $100 cheaper, not enough of a saving to outweigh the sound-quality gap.
The case for the Fatfreq Sakura: Crinacle’s measurement gives it a preference score of 70, a reasonably close match to the response most listeners prefer. The catch: A 2.6 dB standard deviation from target means the response is noticeably uneven in places.
The case for the 64 Audio Solo: The single 14.2mm planar driver reaches full depth, sitting within 0.3 dB of target from 20 to 60 Hz on the median of nine squig.link measurements, so bass notes keep their weight without being pumped up. The catch: A dip of 6.4 dB near 3.5 kHz pulls the presence region 5.5 dB below target, so vocals and guitars sound distant and lack bite.
Buy the Fatfreq Sakura. It is rated higher for sound quality, and saving $100 with the 64 Audio Solo does not make up for the sound-quality gap.
Still deciding? The full Headphones rankings cover every ranked option.
Crinacle’s measurement gives it a preference score of 70, a reasonably close match to the response most listeners prefer.
FATfreq $1,499.00 eBay
The single 14.2mm planar driver reaches full depth, sitting within 0.3 dB of target from 20 to 60 Hz on the median of nine squig.link measurements, so bass notes keep their weight without being pumped up.
Headphones.com $1,399.00 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 Sakura | 64 Audio Solo | |
|---|---|---|
| Price | $1,499.00 | $1,399.00 |
| Ranked | #633 of 1291 in In-Ear Headphones | #719 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 70 (measured by crinacle, via AutoEQ) | 69 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.58 dB standard deviation | 2.29 dB standard deviation |
| Tonal Tilt | -0.08 (negative is warmer, positive brighter) | -0.64 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Built-in Microphone | No | - |
| Sub-bass Extension | - | Within 6 dB of target down to 20 Hz (-0.2 dB at 30 Hz) |
| Driver Type | - | Planar magnetic |
| Drivers | - | 1 x 14.2mm planar magnetic |
| Impedance | - | 12 ohms |
| Sensitivity | - | 100 dB @ 1kHz |
Related Headphone Comparisons
More top alternatives to Fatfreq Sakura: