Short answer: a tie on sound quality. Both are rated 4.4/5 (#111 and #95 of 450 in-ear headphones) at nearly the same price ($39.99 vs $39.99), so choose on features and fit.
What the CCA Pianist does well: The median of 11 squig.link measurements shows a smooth 1.32 dB spread and a preference score of 78.6, with no dip deeper than 1.8 dB anywhere from 1.5 to 12 kHz. The tradeoff: Sub-bass, bass and low mids all sit 1.4 to 1.8 dB below target, so it sounds a bit lean and lacks warmth and slam on bass-heavy music.
The case for the KBEAR KB02: Across eleven squig.link measurements the KB02 earns a preference score of 79.1 with a smooth 1.41 dB deviation, an impressive result at its low price. The catch: An 8.7 dB peak near 11.5 kHz adds a sharp sparkle that can make hi hats and sibilance sting.
Buy the CCA Pianist or the KBEAR KB02 on features: they are rated the same for sound quality at close to the same price.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| CCA Pianist | KBEAR KB02 | |
|---|---|---|
| Price | $39.99 | $39.99 |
| Ranked | #111 of 450 in In-Ear Headphones | #95 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 79 (median of 11 squig.link measurements, calibrated to AutoEQ) | 79 (median of 11 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.32 dB standard deviation | 1.41 dB standard deviation |
| Tonal Tilt | +0.44 (negative is warmer, positive brighter) | -0.51 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.2 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+2.0 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature) | Hybrid (1 dynamic + 1 bone conduction) |
| Drivers | 1 x 10mm dynamic + 2 x balanced armature | 1 x 10mm dynamic + 1 x 10mm bone conduction |
| Impedance | 18 ohms | 40 ohms |
| Sensitivity | 106 dB | 108 dB/mW |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Built-in Microphone | - | No |
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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 Pianist: $39.99 Linsoul eBay
Pros: The median of 11 squig.link measurements shows a smooth 1.32 dB spread and a preference score of 78.6, with no dip deeper than 1.8 dB anywhere from 1.5 to 12 kHz. Upper mids sit 1 dB above target, so vocals, piano and acoustic guitar sound clear and forward. A 3.7 dB air lift adds detail, and the 18 ohm, 106 dB load runs easily from a phone.
Cons: Sub-bass, bass and low mids all sit 1.4 to 1.8 dB below target, so it sounds a bit lean and lacks warmth and slam on bass-heavy music. Its slightly bright tilt and a 4.3 dB peak near 8.1 kHz can make sibilant recordings sharper than usual.
Full CCA Pianist review and specifications →
| Released | Aug 2023 (3 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.32 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 2 balanced armature) |
| Drivers | 1 x 10mm dynamic + 2 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 79 (median of 11 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 18 ohms |
| Sensitivity | 106 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.2 dB at 30 Hz) |
| Tonal Tilt | +0.44 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
KBEAR KB02: $39.99 Amazon eBay
Pros: Across eleven squig.link measurements the KB02 earns a preference score of 79.1 with a smooth 1.41 dB deviation, an impressive result at its low price. Sub-bass sits about 1.7 dB above target and stays strong to 20 Hz, so bass lines and electronic drops have satisfying rumble for listeners who like a warm, bassy tilt. Its 40 ohm, 108 dB/mW rating means a phone drives it easily.
Cons: An 8.7 dB peak near 11.5 kHz adds a sharp sparkle that can make hi hats and sibilance sting. A 4.8 dB dip near 6.3 kHz just below it softens the attack of snares and guitars, so the treble can sound uneven rather than smoothly extended.
Full KBEAR KB02 review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 1.41 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 1 bone conduction) |
| Drivers | 1 x 10mm dynamic + 1 x 10mm bone conduction |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 79 (median of 11 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 40 ohms |
| Sensitivity | 108 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.0 dB at 30 Hz) |
| Tonal Tilt | -0.51 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons