Short answer: the Letshuoer Sonata. Both are rated 4.2/5 for sound quality (#259 and #299 of 1291 in-ear headphones), and the Letshuoer Sonata costs $2,300 against $2,999 for the Final Audio A10000, and with sound quality even, the cheaper one is the better buy.
The case for the Final Audio A10000: Bass, low mids and presence all sit within about 1 dB of target on the squig.link measurements, so the low end is full depth but uninflated and voices come through with natural tone. The tradeoff: A sharp 10.4 dB peak at 8.1 kHz lifts the 6 to 10 kHz band 4.8 dB over target, which can make cymbals, sibilants and hi hats sting at higher volume.
What the Letshuoer Sonata does well: A tribrid flagship with isobaric dynamic woofers that measures well (score 77) with a tight 1.54 dB spread from the target. The catch: Very expensive for a score that budget IEMs match, and treble sits about 2.2 dB below target.
Buy the Letshuoer Sonata. Both are rated the same for sound quality, and it costs $699 less than the Final Audio A10000.
Looking for alternatives? See the complete Headphones rankings.
Bass, low mids and presence all sit within about 1 dB of target on the squig.link measurements, so the low end is full depth but uninflated and voices come through with natural tone.
Bloom Audio $2,999.00 eBay
A tribrid flagship with isobaric dynamic woofers that measures well (score 77) with a tight 1.54 dB spread from the target.
Letshuoer $2,300.00 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
| Final Audio A10000 | Letshuoer Sonata | |
|---|---|---|
| Price | $2,999.00 | $2,300.00 |
| Ranked | #299 of 1291 in In-Ear Headphones | #259 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 76 (median of 2 squig.link measurements, calibrated to AutoEQ) | 77 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.93 dB standard deviation | 1.54 dB standard deviation |
| Tonal Tilt | +0.23 (negative is warmer, positive brighter) | -0.69 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.2 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.7 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Tribrid |
| Impedance | 13 ohms | 22 ohms |
| Sensitivity | 99 dB/mW | 102 dB SPL/mW |
| Drivers | - | 2 x isobaric dynamic + 4 x balanced armature + 4 x electrostatic |
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