Short answer: the SeeAudio Neo. Both are rated 3.4/5 for sound quality (#872 and #903 of 1369 in-ear headphones), and the SeeAudio Neo costs $1,099 against $1,919 for the Unique Melody MEST MKIII, with sound quality a draw, the lower price decides it.
What the SeeAudio Neo does well: Bass and sub-bass sit within a decibel of target down to 20 Hz, giving a clean, controlled low end without boom. The tradeoff: Squig.link measurements show the 3 to 6 kHz presence band about 5.4 dB below target with a 9.2 dB dip near 5.5 kHz, so vocals lose clarity and instruments sound recessed.
Why pick the Unique Melody MEST MKIII: A broadly balanced tuning with a preference score of 66 against the Harman target. Watch for: Treble about 4 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the SeeAudio Neo. Both are rated the same for sound quality, and it costs $820 less than the Unique Melody MEST MKIII.
Want more options? Browse the full Headphones rankings.
Bass and sub-bass sit within a decibel of target down to 20 Hz, giving a clean, controlled low end without boom.
Linsoul $1,099.00 eBay
A broadly balanced tuning with a preference score of 66 against the Harman target.
MusicTeck $1,919.00 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| SeeAudio Neo | Unique Melody MEST MKIII | |
|---|---|---|
| Price | $1,099.00 | $1,919.00 |
| Ranked | #872 of 1369 in In-Ear Headphones | #903 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 66 (measured by crinacle, via AutoEQ) | 66 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.51 dB standard deviation | 2.64 dB standard deviation |
| Tonal Tilt | -0.80 (negative is warmer, positive brighter) | -0.63 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Balanced armature | Quadbrid |
| Drivers | 10 x balanced armature | 10 drivers (1 dynamic driver + 4 balanced armatures + 4 electrostatic + 1 bone conduction driver) |
| Impedance | 28 ohms | 14 ohms |
| Sensitivity | 116 dB/mW | 104 dB |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 20Hz - 70kHz |
| Built-in Microphone | No | - |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.6 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.3 dB at 30 Hz) |
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 SeeAudio Neo from aftersound, eliseaudio, hbb and timmyv; the Unique Melody MEST MKIII from aden, dl, harutohiroki, hbb, kazi, musicafe, practiphile and precog, all via squig.link.
Related Headphone Comparisons
More top alternatives to SeeAudio Neo: