The Kefine Klean SV ranks #50 out of 297 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Kefine
Prices on this page were last checked October 10, 2026 at 5:37 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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#50 Kefine Klean SV: $59.99 Amazon eBay
Pros: The median of 18 squig.link measurements gives a preference score of 80.9 and a very smooth 1.28 dB deviation. Sub-bass sits within 0.3 dB of target at 30 Hz and upper bass gets a mild lift, so it delivers deep, clean rumble with a warm tone. It rates above the Moondrop Lan and the more expensive Moondrop Golden Ages 2, and each earbud weighs only 10 g.
Cons: A 5.4 dB dip near 9.5 kHz and treble about 2.5 dB under target from 6 to 10 kHz mute cymbal texture, while the air band above 10 kHz rises about 5 dB, so the top end can sound uneven. Presence is also about 1.6 dB shy, which softens vocal bite.
| Released | Feb 2026 (8 months ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.28 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 81 (median of 18 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 107 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.3 dB at 30 Hz) |
| Tonal Tilt | -0.40 (negative is warmer, positive brighter) |
| Weight | 0 lbs (10 g) per earbud |
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