Short answer: a tie on sound quality. Both are rated 3.6/5 (#743 and #728 of 1291 in-ear headphones) at nearly the same price ($129 vs $129.99), so choose on features and fit.
What the Tekkusai Lucid does well: A broadly balanced tuning with a preference score of 69 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.
The case for the TRN Jaws: An eight driver hybrid with three dynamic drivers, four balanced armatures and a planar. Watch for: A 2.37 dB spread from the target shows peaks and dips that better tuned sets avoid.
Buy the Tekkusai Lucid or the TRN Jaws on features: they are rated the same for sound quality at close to the same price.
Looking for alternatives? See the complete Headphones rankings.
A broadly balanced tuning with a preference score of 69 against the Harman target.
Amazon $129 eBay
An eight driver hybrid with three dynamic drivers, four balanced armatures and a planar.
Amazon $129.99 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
| Tekkusai Lucid | TRN Jaws | |
|---|---|---|
| Price | $129 | $129.99 |
| Ranked | #743 of 1291 in In-Ear Headphones | #728 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 69 (median of 4 squig.link measurements, calibrated to AutoEQ) | 69 (median of 5 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.95 dB standard deviation | 2.37 dB standard deviation |
| Tonal Tilt | -0.92 (negative is warmer, positive brighter) | -0.21 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.8 dB at 30 Hz) |
| Connection | Wired (3.5mm) | Wired |
| Driver Type | Hybrid | Hybrid |
| Drivers | 1 Dynamic, 2 Balanced Armature | 3 x dynamic + 4 x balanced armature + 1 x planar |
| Impedance | - | 27 ohms |
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 Tekkusai Lucid from audioamigo, flare, gadgetrytech and jaytiss; the TRN Jaws from atechreviews, audioamigo, eplv, soundcheck39 and tonedeafmonk, all via squig.link.
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