Short answer: a tie on sound quality. Both are rated 3.9/5 (#25 and #23 of 68 in-ear headphones) at nearly the same price ($20.99 vs $24.99), so choose on features and fit.
The case for the CCA CRA: A preference score of 72 in crinacle’s measurement is strong for one of the least expensive wired sets in its class, and the 1.98 dB deviation from target is among the smoothest in this group. Watch for: The tuning is a notch below the best sets in the class, and the slightly warm lean can soften treble detail for those who prefer a brighter sound.
What the KZ ZSN Pro does well: A preference score of 73 in HypetheSonics’ measurement is solid for a wired set this cheap, with a response that stays within about 2.2 dB of the Harman target. The tradeoff: Treble above 10 kHz runs about 6 dB hot, with a sharp 9.4 dB peak near 11 kHz that can make cymbals and hi-hats sound glassy or hissy.
Buy the CCA CRA or the KZ ZSN Pro on features: they are rated the same for sound quality at close to the same price.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| CCA CRA | KZ ZSN Pro | |
|---|---|---|
| Price | $20.99 | $24.99 |
| Ranked | #25 of 68 in In-Ear Headphones | #23 of 68 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Harman Preference Score | 72 (measured by crinacle, via AutoEQ) | 73 (measured by HypetheSonics, via AutoEQ) |
| Deviation From Target | 1.98 dB standard deviation | 2.23 dB standard deviation |
| Tonal Tilt | -0.71 (negative is warmer, positive brighter) | -0.11 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid (1 dynamic + 1 balanced armature) |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic + 1 x balanced armature |
| Impedance | 23.5 ohms | 25 ohms |
| Sensitivity | 111 dB | 104 dB/mW |
| Back | Closed | Closed |
| Frequency Response | - | 20Hz - 40kHz (Manufacturer specified) |
Related Headphone Comparisons
How KZ ZSN Pro compares with other leading options:
- KZ ZSN Pro X vs KZ ZSN Pro
- 7Hz x Crinacle Zero 2 vs KZ ZSN Pro
- 7Hz x Crinacle Zero 2 vs CCA CRA
- CCA C12 vs MEE Audio M6 Pro
- Truthear x Crinacle Zero RED vs Tin HiFi T4
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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The Two Headphones In Full
CCA CRA: $20.99 Amazon eBay
Pros: A preference score of 72 in crinacle’s measurement is strong for one of the least expensive wired sets in its class, and the 1.98 dB deviation from target is among the smoothest in this group. The 111 dB sensitivity and 23.5 ohm impedance mean a phone drives it to high volume with ease. The slightly warm tilt suits listeners who like a touch of extra bass.
Cons: The tuning is a notch below the best sets in the class, and the slightly warm lean can soften treble detail for those who prefer a brighter sound. It has no listed frequency range or other extras, so the case for it rests on the tuning and low cost.
Full CCA CRA 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 |
| Harman Preference Score | 72 (measured by crinacle, via AutoEQ) |
| Impedance | 23.5 ohms |
| Sensitivity | 111 dB |
| Tonal Tilt | -0.71 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -2.7 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 | -2.5 dB | 0.70 |
| Peak | 183 Hz | -2.3 dB | 1.19 |
| Peak | 818 Hz | +2.3 dB | 1.03 |
| Peak | 3,058 Hz | +2.5 dB | 2.13 |
| Peak | 1,484 Hz | -1.5 dB | 1.88 |
| High shelf | 10,000 Hz | -5.7 dB | 0.70 |
| Peak | 9,654 Hz | +2.4 dB | 2.57 |
| Peak | 6,044 Hz | +3.0 dB | 5.11 |
| Peak | 66 Hz | +0.7 dB | 2.30 |
| Peak | 4,821 Hz | -2.0 dB | 5.10 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
KZ ZSN Pro: $24.99 Amazon eBay
Pros: A preference score of 73 in HypetheSonics’ measurement is solid for a wired set this cheap, with a response that stays within about 2.2 dB of the Harman target. Bass sits roughly 3 dB above target from 60 to 200 Hz, adding punch to kick drums and bass guitar without muddying the lower midrange, which stays within 1 dB. At 25 ohms and 104 dB/mW it runs loudly from a phone, and the hybrid dynamic plus balanced armature design suits v-shaped and warm tastes. It also rates higher than the MEE Audio M6 Pro.
Cons: Treble above 10 kHz runs about 6 dB hot, with a sharp 9.4 dB peak near 11 kHz that can make cymbals and hi-hats sound glassy or hissy. A 3.7 dB dip near 3.4 kHz pulls vocals and snare snap slightly back. Listeners who want a flat, neutral tuning will find the bass and treble both exaggerated.
Full KZ ZSN Pro review and specifications →
| Released | 2019 (7 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.23 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 1 balanced armature) |
| Drivers | 1 x 10mm dynamic + 1 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 73 (measured by HypetheSonics, via AutoEQ) |
| Impedance | 25 ohms |
| Sensitivity | 104 dB/mW |
| Tonal Tilt | -0.11 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -4.2 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 | +0.5 dB | 0.70 |
| Peak | 750 Hz | +3.7 dB | 0.88 |
| Peak | 160 Hz | -3.1 dB | 0.79 |
| Peak | 3,264 Hz | +4.4 dB | 3.80 |
| Peak | 2,073 Hz | -3.5 dB | 2.04 |
| High shelf | 10,000 Hz | -5.0 dB | 0.70 |
| Peak | 4,840 Hz | -4.2 dB | 6.00 |
| Peak | 6,161 Hz | +3.4 dB | 4.50 |
| Peak | 3,841 Hz | +1.8 dB | 5.81 |
| Peak | 4,626 Hz | -1.0 dB | 5.62 |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons