Short answer: the AME Raven. It ranks #1015 of 1369 in-ear headphones by sound quality, rated 3.2/5, at $3,240. The 64 Audio U18S ranks #1021, rated 3.1/5, at $2,999, $241 cheaper, which does not close the gap in sound quality.
What the AME Raven does well: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap. Watch for: An uneven response, 2.6 dB standard deviation from target.
The case for the 64 Audio U18S: Eighteen balanced armature drivers per side deliver a warm, relaxed tuning with bass about 1.6 dB above target and sub-bass within 6 dB of target down to 20 Hz. Watch for: Across seven hobbyist measurements on squig.link, the 3 to 6 kHz presence region sits about 6 dB below target with a 9 dB dip near 5.8 kHz, so vocals and guitars lose bite and fine detail sounds veiled.
Buy the AME Raven. It is rated higher for sound quality, and the $241 saving on the 64 Audio U18S is not enough to make up the difference.
Still deciding? The full Headphones rankings cover every ranked option.
A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
MusicTeck $3,240.00 eBay
Eighteen balanced armature drivers per side deliver a warm, relaxed tuning with bass about 1.6 dB above target and sub-bass within 6 dB of target down to 20 Hz.
64 Audio $2,999.00 eBayPrices on this page were last checked October 17, 2026 at 6:04 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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Specifications Side By Side
| AME Raven | 64 Audio U18S | |
|---|---|---|
| Price | $3,240.00 | $2,999.00 |
| Ranked | #1015 of 1369 in In-Ear Headphones | #1021 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 63 (median of 3 squig.link measurements, calibrated to AutoEQ) | 63 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 2.62 dB standard deviation | 2.78 dB standard deviation |
| Tonal Tilt | -0.57 (negative is warmer, positive brighter) | -0.81 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.7 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid | Balanced armature |
| Drivers | 4 EST + 8 BA (4 x Sonion electrostatic drivers, 8 x Sonion balanced armatures) | 18 x balanced armature (1 tia high + 1 high-mid + 8 mid + 8 low) |
| Impedance | 14 ohms | 8 ohms |
| Sensitivity | 100 dB | 106 dB/mW |
| Frequency Response | 20Hz - 70kHz | 10Hz - 20kHz (Manufacturer specified) |
| Built-in Microphone | - | No |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the AME Raven from aden, dchpgall and eliseaudio; the 64 Audio U18S from aftersound, dchpgall, precog, recode, superreview, theaudiostore and treblewellxtended, all via squig.link.
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