Short answer: the EPZ G10. It ranks #11 of 450 in-ear headphones by sound quality, rated 4.9/5, at $23.74; the CCA Trio ranks #17, rated 4.8/5, and costs $23.99, which makes this an easy call rather than a real tradeoff.
Why pick the EPZ G10: Across 22 hobbyist measurements on squig.link, the G10 tracks the Harman target with only 1.11 dB of deviation and a preference score of 84.7, an exceptionally even result for a single dynamic driver at a budget price. Watch for: The presence region around 3 to 6 kHz runs about 1.5 dB low, with a 3.6 dB dip near 6.3 kHz that slightly softens the edge of vocals and snare hits.
What the CCA Trio does well: In squig.link measurements, the median of eight hobbyist samples, it scores 84 for preference, impressive for a very cheap in-ear. Watch for: A 5.3 dB peak near 8.4 kHz and air about 2.6 dB above target can make sibilants and cymbals sound sharp on bright tracks.
Buy the EPZ G10. It is rated higher for sound quality than the CCA Trio and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| EPZ G10 | CCA Trio | |
|---|---|---|
| Price | $23.74 | $23.99 |
| Ranked | #11 of 450 in In-Ear Headphones | #17 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 85 (median of 22 squig.link measurements, calibrated to AutoEQ) | 84 (median of 8 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.11 dB standard deviation | 1.15 dB standard deviation |
| Tonal Tilt | +0.08 (negative is warmer, positive brighter) | -0.12 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.2 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.3 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 3 x 8mm dynamic |
| Impedance | 32 ohms | - |
| Sensitivity | 100 dB | 101-103 dB |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 20Hz - 40kHz (Manufacturer specified) |
| Weight | - | 0 lbs (10 g) per earbud |
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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
EPZ G10: $23.74 Amazon eBay
Pros: Across 22 hobbyist measurements on squig.link, the G10 tracks the Harman target with only 1.11 dB of deviation and a preference score of 84.7, an exceptionally even result for a single dynamic driver at a budget price. Bass, low mids and upper mids all land within half a decibel of target, so vocals sound natural and bass lines are full without bloat. Sub-bass holds within 1.2 dB of target at 30 Hz, and the 32 ohm, 100 dB sensitivity rating plays comfortably from a phone. It shares its rating with the pricier EPZ Q1 Pro and Intuaura Reference 2019.
Cons: The presence region around 3 to 6 kHz runs about 1.5 dB low, with a 3.6 dB dip near 6.3 kHz that slightly softens the edge of vocals and snare hits. A 4.6 dB peak near 11.9 kHz adds a touch of sparkle that treble sensitive listeners may notice on bright recordings. It is a plain wired set with no microphone or wireless option listed.
Full EPZ G10 review and specifications →
| Released | 2023 (3 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.11 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 85 (median of 22 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 100 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.2 dB at 30 Hz) |
| Tonal Tilt | +0.08 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
CCA Trio: $23.99 Amazon eBay
Pros: In squig.link measurements, the median of eight hobbyist samples, it scores 84 for preference, impressive for a very cheap in-ear. Bass is close to target down to 20 Hz with a mild 1.3 dB lift above 60 Hz, giving warm, punchy low end. Three 8 mm dynamic drivers per side give a warm, mildly V shaped sound that suits listeners who enjoy energy in the bass and treble. It is rated above the Aoshida E20 at a similar price.
Cons: A 5.3 dB peak near 8.4 kHz and air about 2.6 dB above target can make sibilants and cymbals sound sharp on bright tracks. At 10 g per earbud it is on the heavier side for an in-ear, and the presence region dips about 1 dB under target, softening vocal edges slightly.
Full CCA Trio review and specifications →
| Released | Feb 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.15 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 3 x 8mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 84 (median of 8 squig.link measurements, calibrated to AutoEQ) |
| Sensitivity | 101-103 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.3 dB at 30 Hz) |
| Tonal Tilt | -0.12 (negative is warmer, positive brighter) |
| Weight | 0 lbs (10 g) per earbud |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons