Short answer: the CCA Polaris. Both are rated 4.1/5 for sound quality (#231 and #230 of 450 in-ear headphones), and the CCA Polaris costs $13 against $18.99 for the KZ ZSN Pro 2, so with nothing between them on sound quality, price settles it.
Buy the CCA Polaris. Both are rated the same for sound quality, and it costs $5.99 less than the KZ ZSN Pro 2.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| CCA Polaris | KZ ZSN Pro 2 | |
|---|---|---|
| Price | $13.00 | $18.99 |
| Ranked | #231 of 450 in In-Ear Headphones | #230 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 75 (median of 7 squig.link measurements, calibrated to AutoEQ) | 75 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.98 dB standard deviation | 1.86 dB standard deviation |
| Tonal Tilt | -0.07 (negative is warmer, positive brighter) | -0.25 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid (1 dynamic + 1 balanced armature) |
| Drivers | 1 x 10mm dynamic | 1 x dynamic + 1 x balanced armature |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 20Hz - 40kHz (Manufacturer specified) |
| Impedance | - | 26 ohms |
| Sensitivity | - | 108 dB |
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How KZ ZSN Pro 2 compares with other leading options:
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- KZ ZSN Pro 2 vs KZ ZVX
- KZ ZSN Pro vs KZ ZSN 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 Polaris: $13.00 Linsoul eBay
Full CCA Polaris review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.98 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 75 (median of 7 squig.link measurements, calibrated to AutoEQ) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.1 dB at 30 Hz) |
| Tonal Tilt | -0.07 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
KZ ZSN Pro 2: $18.99 Linsoul eBay
Full KZ ZSN Pro 2 review and specifications →
| Released | Jan 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.86 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 1 balanced armature) |
| Drivers | 1 x dynamic + 1 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 75 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 26 ohms |
| Sensitivity | 108 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.4 dB at 30 Hz) |
| Tonal Tilt | -0.25 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons