Short answer: the CCA C12. It ranks #325 of 450 in-ear headphones by sound quality, rated 3.8/5, at $48.99; the KZ ZS10 Pro 2 ranks #338, rated 3.7/5, and costs $52.24, which makes this an easy call rather than a real tradeoff.
What the CCA C12 does well: Sub-bass sits within 0.2 dB of target and holds up all the way to 20 Hz across hobbyist measurements on squig.link, and a 3.3 dB lift from 60 to 200 Hz adds warm punch to drums and bass lines. The tradeoff: The top octave runs 7.5 dB above target with an 8.8 dB peak near 11.9 kHz, which can add sizzle to cymbals and hiss to bright recordings.
Buy the CCA C12. It is rated higher for sound quality than the KZ ZS10 Pro 2 and costs less, so only choose the other one for a particular feature it does better.
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Specifications Side By Side
| CCA C12 | KZ ZS10 Pro 2 | |
|---|---|---|
| Price | $48.99 | $52.24 |
| Ranked | #325 of 450 in In-Ear Headphones | #338 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Harman Preference Score | 71 (measured by crinacle, via AutoEQ) | 70 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.22 dB standard deviation | 2.13 dB standard deviation |
| Tonal Tilt | -0.38 (negative is warmer, positive brighter) | +0.80 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 5 balanced armature) | Hybrid (1 dynamic + 4 balanced armature) |
| Drivers | 1 x 10mm dynamic + 5 x balanced armature | 1 x 10mm dynamic + 4 x balanced armature |
| Impedance | 24 ohms | - |
| Sensitivity | 112 dB/mW | 108 dB |
| Frequency Response | 7Hz - 40kHz (Manufacturer specified) | 20Hz - 40kHz (Manufacturer specified) |
| Back | Closed | Closed |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-3.9 dB at 30 Hz) |
Related Headphone Comparisons
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- Inawaken Dawn MS vs CCA C12
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- KZ ZS10 Pro 2 vs KZ ZSX
- DUNU Titan X vs KZ ZS10 Pro 2
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
CCA C12: $48.99 Amazon AliExpress eBay
Pros: Sub-bass sits within 0.2 dB of target and holds up all the way to 20 Hz across hobbyist measurements on squig.link, and a 3.3 dB lift from 60 to 200 Hz adds warm punch to drums and bass lines. Crinacle’s measurement gives it a preference score of 71, and the 24 ohm, 112 dB/mW hybrid of one dynamic driver and five balanced armatures plays loud from any phone. It matches the rating of the KZ ZAX while costing less.
Cons: The top octave runs 7.5 dB above target with an 8.8 dB peak near 11.9 kHz, which can add sizzle to cymbals and hiss to bright recordings. A 4.5 dB dip around 6.7 kHz sits just below that peak, so the treble sounds uneven rather than smooth. The MEE Audio M6 Pro earns the same rating for less money.
Full CCA C12 review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.22 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 5 balanced armature) |
| Drivers | 1 x 10mm dynamic + 5 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 7Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 71 (measured by crinacle, via AutoEQ) |
| Impedance | 24 ohms |
| Sensitivity | 112 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.1 dB at 30 Hz) |
| Tonal Tilt | -0.38 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -3.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.9 dB | 0.70 |
| Peak | 161 Hz | -3.6 dB | 0.61 |
| Peak | 677 Hz | +3.8 dB | 1.07 |
| Peak | 2,181 Hz | -3.3 dB | 3.04 |
| Peak | 7,371 Hz | +3.4 dB | 3.04 |
| High shelf | 10,000 Hz | -5.1 dB | 0.70 |
| Peak | 9,487 Hz | +2.8 dB | 2.05 |
| Peak | 3,358 Hz | +3.0 dB | 3.37 |
| Peak | 5,217 Hz | -3.3 dB | 6.00 |
| Peak | 2,530 Hz | -1.7 dB | 5.25 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
KZ ZS10 Pro 2: $52.24 Amazon eBay
Full KZ ZS10 Pro 2 review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.13 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 4 balanced armature) |
| Drivers | 1 x 10mm dynamic + 4 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 70 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Sensitivity | 108 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.9 dB at 30 Hz) |
| Tonal Tilt | +0.80 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons