Short answer: the ThieAudio Prestige. Both are rated 3.6/5 for sound quality (#736 and #693 of 1291 in-ear headphones), and the ThieAudio Prestige costs $1,299 against $1,399 for the SeeAudio Kaguya, so with nothing between them on sound quality, price settles it.
The case for the SeeAudio Kaguya: A preference score of 69 from crinacle and a 2.2 dB standard deviation give it a fairly even response for a premium hybrid. The tradeoff: A 10.8 dB peak near 10 kHz in squig.link measurements can make cymbals and hi-hats sound glassy or hissy to treble-sensitive listeners.
What the ThieAudio Prestige does well: A tribrid flagship with four electrostatic tweeters, four balanced armatures and a dynamic driver. The tradeoff: Very expensive for its rating, and a low 95 dB sensitivity needs more volume.
Buy the ThieAudio Prestige. Both are rated the same for sound quality, and it costs $100 less than the SeeAudio Kaguya.
Looking for alternatives? See the complete Headphones rankings.
A preference score of 69 from crinacle and a 2.2 dB standard deviation give it a fairly even response for a premium hybrid.
Linsoul $1,399.00 eBay
A tribrid flagship with four electrostatic tweeters, four balanced armatures and a dynamic driver.
Linsoul $1,299.00 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
| SeeAudio Kaguya | ThieAudio Prestige | |
|---|---|---|
| Price | $1,399.00 | $1,299.00 |
| Ranked | #693 of 1291 in In-Ear Headphones | #736 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 69 (measured by crinacle, via AutoEQ) | 69 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.22 dB standard deviation | 2.10 dB standard deviation |
| Tonal Tilt | -0.56 (negative is warmer, positive brighter) | -0.79 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (4 balanced armature + 4 electrostatic) | Tribrid |
| Drivers | 4 x balanced armature + 4 x electrostatic | 1 x dynamic + 4 x balanced armature + 4 x electrostatic |
| Impedance | 28 ohms | 11 ohms |
| Sensitivity | 103 dB/mW | 95 dB @1kHz |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | - |
| Built-in Microphone | No | - |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.2 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 Kaguya from aftersound, elrics and recode; the ThieAudio Prestige from atechreviews, bloomaudio, eliseaudio, hbb, precog, seanwee, sl0the, timmyv and vsg, all via squig.link.
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