Short answer: the 64 Audio U18t, though neither ranks well in its class. It ranks #1217 of 1291 in-ear headphones by sound quality, rated 1.5/5, at $2,999. The Ultimate Ears Live ranks #1220, rated 1.4/5, at $2,299, $700 cheaper, which does not close the gap in sound quality. Both are rated below 3.0/5 among the 1291 in-ear headphones, so if sound quality matters, consider the ThieAudio Monarch MKIII instead, ranked #1 at $999.
Why pick the 64 Audio U18t: Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural. Watch for: Presence sits about 10.7 dB low with a 13.8 dB dip near 11.7 kHz, so vocals and instruments lose some bite.
Why pick the Ultimate Ears Live: It uses 1 x 6mm dynamic + 6 x balanced armature + 1 x True Tone Plus with an easy 10 ohm load. Watch for: Its 4.40 dB spread from the target means a noticeably uneven response.
Buy the 64 Audio U18t. It is rated higher for sound quality, and the $700 saving on the Ultimate Ears Live is not enough to make up the difference.
Still deciding? The full Headphones rankings cover every ranked option.
Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural.
Headphones.com $2,999 eBay
It uses 1 x 6mm dynamic + 6 x balanced armature + 1 x True Tone Plus with an easy 10 ohm load.
Ultimate Ears $2,299.00 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
| 64 Audio U18t | Ultimate Ears Live | |
|---|---|---|
| Price | $2,999 | $2,299.00 |
| Ranked | #1217 of 1291 in In-Ear Headphones | #1220 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Connection | Wired | Wired |
| Driver Type | Balanced armature | Hybrid |
| Drivers | 18 x balanced armature | 1 x 6mm dynamic + 6 x balanced armature + 1 x True Tone Plus |
| Impedance | 9 ohms | 10 ohms |
| Sensitivity | 111 dB/mW | 105 dB/mW |
| Frequency Response | 10Hz - 20kHz | - |
| Harman Preference Score | 43 (measured by HypetheSonics, via AutoEQ) | 42 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 4.38 dB standard deviation | 4.40 dB standard deviation |
| Tonal Tilt | -0.97 (negative is warmer, positive brighter) | -1.14 (negative is warmer, positive brighter) |
| Sub-bass Extension | Falls 6 dB below target at 30 Hz (-6.1 dB at 30 Hz) | - |
Related Headphone Comparisons
More top alternatives to 64 Audio U18t: