Short answer: the Kinera Imperial Loki. It ranks #774 of 1291 in-ear headphones by sound quality, rated 3.6/5, at $3,099; the Vortex Reference ranks #892, rated 3.4/5, and costs $3,300, which makes this an easy call rather than a real tradeoff.
Why pick the Kinera Imperial Loki: A twelve driver flagship with a dynamic driver, six balanced armatures, four electrostatic tweeters and a bone conduction driver. The catch: Treble sits about 2.7 dB below target, a dark, relaxed balance.
Why pick the Vortex Reference: A broadly balanced tuning with a preference score of 66 against the Harman target. The tradeoff: Treble about 2 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Buy the Kinera Imperial Loki. It is rated higher for sound quality than the Vortex Reference and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Headphones rankings.
A twelve driver flagship with a dynamic driver, six balanced armatures, four electrostatic tweeters and a bone conduction driver.
Kinera official store $3,099.00 eBay
A broadly balanced tuning with a preference score of 66 against the Harman target.
Bloom Audio $3,300.00 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.
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Specifications Side By Side
| Kinera Imperial Loki | Vortex Reference | |
|---|---|---|
| Price | $3,099.00 | $3,300.00 |
| Ranked | #774 of 1291 in In-Ear Headphones | #892 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Quadbrid | Hybrid (2 DD + 2 Passive MEMS) |
| Drivers | 1 x dynamic + 6 x balanced armature + 4 x electrostatic + 1 x bone conduction | 2 x dynamic drivers (including 8mm Al-Mg dome woofer) + 2 x passive MEMS tweeters |
| Impedance | 12 ohms | 23 ohms |
| Sensitivity | 107 dB @ 1kHz | 102 dB/mW |
| Harman Preference Score | 68 (median of 4 squig.link measurements, calibrated to AutoEQ) | 66 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.09 dB standard deviation | 2.45 dB standard deviation |
| Tonal Tilt | -0.64 (negative is warmer, positive brighter) | -0.75 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.4 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 Kinera Imperial Loki from mmagtech, silicagel, soundignity and tonedeafmonk; the Vortex Reference from bloomaudio, dchpgall and joycesreview, all via squig.link.
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