Short answer: the EPZ G10. It ranks #11 of 450 in-ear headphones by sound quality, rated 4.9/5, at $23.74; the Aoshida E20 ranks #26, rated 4.7/5, at $22.99. The price gap is small enough that the sound-quality ranking should decide it.
What the EPZ G10 does well: 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. The catch: 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.
The case for the Aoshida E20: Across six hobbyist measurements on squig.link, the E20 reaches a preference score of 82.6 with a smooth 1.13 dB deviation from target. The tradeoff: A 6 dB peak near 8.4 kHz and treble about 2.1 dB above target from 6 to 10 kHz can make sibilance and hi hats sound sharp on bright recordings.
Buy the EPZ G10. It is rated higher for sound quality, and saving $0.75 with the Aoshida E20 does not make up for the sound-quality gap.
Still deciding? The full Headphones rankings cover every ranked option.
Specifications Side By Side
| EPZ G10 | Aoshida E20 | |
|---|---|---|
| Price | $23.74 | $22.99 |
| Ranked | #11 of 450 in In-Ear Headphones | #26 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) | 83 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.11 dB standard deviation | 1.13 dB standard deviation |
| Tonal Tilt | +0.08 (negative is warmer, positive brighter) | +0.26 (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 (-0.8 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic + 1 x 8mm dynamic |
| Impedance | 32 ohms | 12 ohms |
| Sensitivity | 100 dB | 98 dB |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | 20Hz - 40kHz (Manufacturer specified) |
Related Headphone Comparisons
How EPZ G10 compares with other leading options:
- EPZ G10 vs EPZ G20
- EPZ G10 vs CCA Trio
- EPZ G10 vs Truthear Gate
- EPZ G10 vs EPZ G30
- EPZ 550 vs EPZ G10
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
Aoshida E20: $22.99 Amazon eBay
Pros: Across six hobbyist measurements on squig.link, the E20 reaches a preference score of 82.6 with a smooth 1.13 dB deviation from target. Sub-bass sits within a decibel of target down to 30 Hz, and the mids stay within about 1 dB, so vocals sound natural with solid bass underneath. Its dual dynamic driver design and budget price make it a sensible pick for warm or mildly V shaped tastes.
Cons: A 6 dB peak near 8.4 kHz and treble about 2.1 dB above target from 6 to 10 kHz can make sibilance and hi hats sound sharp on bright recordings. Bass from 60 to 200 Hz runs about 1 dB lean, so it has less punch than bass focused alternatives. It is rated level with similarly priced rivals such as the KZ EDZ and DDHiFi Janus 3 rather than above them.
Full Aoshida E20 review and specifications →
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.13 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic + 1 x 8mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 83 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 12 ohms |
| Sensitivity | 98 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.8 dB at 30 Hz) |
| Tonal Tilt | +0.26 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons