Short answer: the Tin HiFi C2. It ranks #40 of 450 in-ear headphones by sound quality, rated 4.6/5, at $59.99. The Kefine Klean ranks #84, rated 4.5/5, at $53.61, $6.38 cheaper, a saving that is not big enough to make up the sound-quality gap.
What the Tin HiFi C2 does well: Across 15 squig.link measurements it reaches a preference score of 81.6 with a 1.42 dB deviation, close to neutral with a slight warm lean. The catch: The 10 to 16 kHz air band runs about 5 dB above target with a 6.2 dB peak near 11.9 kHz, which can make cymbals and hi hats sound a bit sharp to treble sensitive ears.
What the Kefine Klean does well: Four squig.link measurements give the Klean a preference score of 79.4 with a very smooth 1.32 dB deviation from target. The tradeoff: A 5 dB dip near 9.9 kHz dulls the shimmer of cymbals and strings, and presence sits 1.9 dB below target, softening vocal edges.
Buy the Tin HiFi C2. It is rated higher for sound quality, and the $6.38 you would save on the Kefine Klean does not close the gap.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| Tin HiFi C2 | Kefine Klean | |
|---|---|---|
| Price | $59.99 | $53.61 |
| Ranked | #40 of 450 in In-Ear Headphones | #84 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 82 (median of 15 squig.link measurements, calibrated to AutoEQ) | 79 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.42 dB standard deviation | 1.32 dB standard deviation |
| Tonal Tilt | -0.07 (negative is warmer, positive brighter) | -0.39 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.0 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic |
| Impedance | 32 ohms | 32 ohms |
| Sensitivity | 104 dB @ 1kHz 0.179V | 107 dB |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Weight | - | 0 lbs (10 g) |
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More worthwhile head-to-heads for Tin HiFi C2:
- ThieAudio Monarch MKII vs Tin HiFi C2
- Kefine Klean SV vs Tin HiFi C2
- CCA Rhapsody vs Tin HiFi C2
- Tin HiFi C2 vs Tin HiFi C2 2025
- Kefine Klean SV vs Kefine Klean
Prices on this page were last checked October 11, 2026 at 4:59 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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The Two Headphones In Full
Tin HiFi C2: $59.99 Amazon eBay
Pros: Across 15 squig.link measurements it reaches a preference score of 81.6 with a 1.42 dB deviation, close to neutral with a slight warm lean. Bass from 60 to 200 Hz is lifted about 1.4 dB for punch while the midrange stays on target, so vocals sound clear and natural. It is rated higher than the Moondrop Lan and the pricier Moondrop Golden Ages 2, and its 32 ohm load runs easily from a phone.
Cons: The 10 to 16 kHz air band runs about 5 dB above target with a 6.2 dB peak near 11.9 kHz, which can make cymbals and hi hats sound a bit sharp to treble sensitive ears. A 3.5 dB dip near 6.5 kHz slightly blunts the leading edge of instruments.
Full Tin HiFi C2 review and specifications →
| Released | Jun 2023 (3 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.42 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 82 (median of 15 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 104 dB @ 1kHz 0.179V |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.0 dB at 30 Hz) |
| Tonal Tilt | -0.07 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Kefine Klean: $53.61 Amazon eBay
Pros: Four squig.link measurements give the Klean a preference score of 79.4 with a very smooth 1.32 dB deviation from target. Sub-bass 1.3 dB and bass 2.1 dB above target give it a warm, rich low end that suits bassy tastes, while mids stay close to neutral. At 32 ohms and 107 dB it plays well from a phone, and it weighs 10 g.
Cons: A 5 dB dip near 9.9 kHz dulls the shimmer of cymbals and strings, and presence sits 1.9 dB below target, softening vocal edges. It costs more than the equally rated KZ Duonic and Sivga SM100.
Full Kefine Klean review and specifications →
| Released | Oct 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.32 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 79 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 107 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.0 dB at 30 Hz) |
| Tonal Tilt | -0.39 (negative is warmer, positive brighter) |
| Weight | 0 lbs (10 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons