Short answer: the Unique Melody MEST MKIII. It ranks #903 of 1369 in-ear headphones by sound quality, rated 3.4/5, at $1,919; the Canpur CP54E ranks #946, rated 3.3/5, and costs $1,999, which makes this an easy call rather than a real tradeoff.
The case for the Unique Melody MEST MKIII: A broadly balanced tuning with a preference score of 66 against the Harman target. The catch: Treble about 4 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Why pick the Canpur CP54E: A broadly balanced tuning with a preference score of 65 against the Harman target. Watch for: Treble about 2 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the Unique Melody MEST MKIII. It is rated higher for sound quality than the Canpur CP54E and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Headphones rankings.
A broadly balanced tuning with a preference score of 66 against the Harman target.
MusicTeck $1,919.00 eBay
A broadly balanced tuning with a preference score of 65 against the Harman target.
MusicTeck $1,999 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Unique Melody MEST MKIII | Canpur CP54E | |
|---|---|---|
| Price | $1,919.00 | $1,999 |
| Ranked | #903 of 1369 in In-Ear Headphones | #946 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 66 (median of 4 squig.link measurements, calibrated to AutoEQ) | 65 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.64 dB standard deviation | 2.48 dB standard deviation |
| Tonal Tilt | -0.63 (negative is warmer, positive brighter) | -0.86 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+2.1 dB at 30 Hz) |
| Driver Type | Quadbrid | Hybrid (Balanced Armature + Electrostatic) |
| Drivers | 10 drivers (1 dynamic driver + 4 balanced armatures + 4 electrostatic + 1 bone conduction driver) | 9 drivers per side (5 Balanced Armature + 4 Sonion Electrostatic) |
| Impedance | 14 ohms | 10 ohms |
| Sensitivity | 104 dB | 100 dB SPL/mW |
| Frequency Response | 20Hz - 70kHz | 5Hz - 45kHz |
| Connection | Wired | Wired |
| Weight | - | Not specified |
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 Unique Melody MEST MKIII from aden, dl, harutohiroki, hbb, kazi, musicafe, practiphile and precog; the Canpur CP54E from dchpgall, kr0mka and tgx78, all via squig.link.
Related Headphone Comparisons
More top alternatives to Unique Melody MEST MKIII: