Short answer: the Unique Melody MEST Fortune. It ranks #519 of 1291 in-ear headphones by sound quality, rated 3.9/5, at $2,699; the Kinera Imperial Loki Emerald ranks #554, rated 3.8/5, and costs $3,099, so there is little reason to consider the other one.
Why pick the Unique Melody MEST Fortune: The median of 3 hobbyist measurements gives it a solid Harman preference score of 72 with a 2.21 dB spread. Watch for: Presence sits about 5.2 dB low with an 8.3 dB dip near 4.0 kHz, so vocals and instruments lose some bite.
The case for the Kinera Imperial Loki Emerald: A broadly balanced tuning with a preference score of 72 against the Harman target. Watch for: Treble about 3 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the Unique Melody MEST Fortune. It is rated higher for sound quality than the Kinera Imperial Loki Emerald and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Looking for alternatives? See the complete Headphones rankings.
The median of 3 hobbyist measurements gives it a solid Harman preference score of 72 with a 2.21 dB spread.
HiFiGo $2,699.00 eBay
A broadly balanced tuning with a preference score of 72 against the Harman target.
Kinera $3,099 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
| Unique Melody MEST Fortune | Kinera Imperial Loki Emerald | |
|---|---|---|
| Price | $2,699.00 | $3,099 |
| Ranked | #519 of 1291 in In-Ear Headphones | #554 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 72 (median of 3 squig.link measurements, calibrated to AutoEQ) | 72 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.21 dB standard deviation | 1.95 dB standard deviation |
| Tonal Tilt | -0.31 (negative is warmer, positive brighter) | -0.45 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+2.6 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 4 balanced armature + 2 electrostatic + 3 bone conduction) | Quadbrid (1 dynamic + 6 balanced armature + 4 electrostatic + 1 bone conduction) |
| Drivers | 1 x dynamic + 4 x balanced armature + 2 x electrostatic + 3 x bone conduction | 1 x dynamic + 6 x balanced armature + 4 x electrostatic + 1 x bone conduction |
| Impedance | 10 ohms | - |
| Sensitivity | 107 dB | - |
| Frequency Response | 20Hz - 35kHz (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 Unique Melody MEST Fortune from aden, atechreviews and tonedeafmonk; the Kinera Imperial Loki Emerald from animagus, dl, eliseaudio, hbb and tedthepraimortis, all via squig.link.
Related Headphone Comparisons
How Unique Melody MEST Fortune compares with other leading options: