Short answer: the EPZ G20 Pro. It ranks #143 of 450 in-ear headphones by sound quality, rated 4.3/5, at $59.99; the 7Hz Sonus ranks #200, rated 4.2/5, at $59.99. Close enough in price that the sound-quality gap is the deciding factor.
Buy the EPZ G20 Pro. It is rated higher for sound quality than the 7Hz Sonus at the same price, which makes it the one to get unless you need something the other one does better.
Want more options? Browse the full Headphones rankings.
Specifications Side By Side
| EPZ G20 Pro | 7Hz Sonus | |
|---|---|---|
| Price | $59.99 | $59.99 |
| Ranked | #143 of 450 in In-Ear Headphones | #200 of 450 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 78 (median of 3 squig.link measurements, calibrated to AutoEQ) | 76 (median of 25 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.68 dB standard deviation | 1.79 dB standard deviation |
| Tonal Tilt | +0.30 (negative is warmer, positive brighter) | -0.37 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.6 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.5 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 |
| Impedance | 32 ohms | 30 ohms |
| Sensitivity | 100 dB | 109 dB/V |
| Built-in Microphone | Yes | - |
| Frequency Response | - | 10Hz - 20kHz (Manufacturer specified) |
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More worthwhile head-to-heads for EPZ G20 Pro:
- EPZ G20 Pro vs QKZ Khan
- EPZ G20 Pro vs Tin HiFi T3 Plus
- EPZ G20 Pro vs EPZ K5
- 7Hz Sonus vs Moondrop Lan 2
- 7Hz Sonus vs Tin HiFi Dudu
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 G20 Pro: $59.99 Amazon eBay
Full EPZ G20 Pro review and specifications →
| Back | Closed |
|---|---|
| Built-in Microphone | Yes |
| Connection | Wired |
| Deviation From Target | 1.68 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Harman Preference Score | 78 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 32 ohms |
| Sensitivity | 100 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.6 dB at 30 Hz) |
| Tonal Tilt | +0.30 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
7Hz Sonus: $59.99 Amazon eBay
Full 7Hz Sonus review and specifications →
| Released | Aug 2023 (3 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.79 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 | 10Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 76 (median of 25 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 30 ohms |
| Sensitivity | 109 dB/V |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.5 dB at 30 Hz) |
| Tonal Tilt | -0.37 (negative is warmer, positive brighter) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons