Short answer: the 7Hz Legato, though neither ranks well in its class. It ranks #1183 of 1291 in-ear headphones by sound quality, rated 1.8/5, at $109; the 1MORE Quad Driver ranks #1198, rated 1.7/5, and costs $119.69, so there is not much of a tradeoff to weigh. Both are rated below 3.0/5 among the 1291 in-ear headphones, and the Intuaura Reference 2019, ranked #7 at $34.99, is a better place to start if sound quality matters.
Why pick the 7Hz Legato: Bass is lifted about 5.1 dB with extension to 20 Hz, giving kick drums and bass lines extra weight. Watch for: Presence sits about 5.2 dB low with a 6.8 dB dip near 4.3 kHz, so vocals and instruments lose some bite.
The case for the 1MORE Quad Driver: The hybrid design combines one dynamic driver with three balanced armatures, and the 32 ohm impedance and 99 dB sensitivity let it run easily from a phone. The tradeoff: Treble from 6 to 10 kHz sits about 6 dB under target and a 10.5 dB dip near 8.8 kHz dulls cymbals and detail, while the air region is boosted by 4.2 dB, which makes the top end uneven.
Buy the 7Hz Legato. It is rated higher for sound quality than the 1MORE Quad Driver and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
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Bass is lifted about 5.1 dB with extension to 20 Hz, giving kick drums and bass lines extra weight.
Linsoul $109 eBay
The hybrid design combines one dynamic driver with three balanced armatures, and the 32 ohm impedance and 99 dB sensitivity let it run easily from a phone.
Amazon $119.69 eBayPrices on this page were last checked October 16, 2026 at 5:46 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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Specifications Side By Side
| 7Hz Legato | 1MORE Quad Driver | |
|---|---|---|
| Price | $109 | $119.69 |
| Ranked | #1183 of 1291 in In-Ear Headphones | #1198 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Hybrid (1 dynamic + 3 balanced armature) |
| Drivers | 1 x 12mm dynamic + 1 x 6mm dynamic | 1 x dynamic + 3 x balanced armature |
| Impedance | 26 ohms | 32 ohms |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 47 (median of 25 squig.link measurements, calibrated to AutoEQ) | 45 (measured by oratory1990, via AutoEQ) |
| Deviation From Target | 3.63 dB standard deviation | 4.49 dB standard deviation |
| Tonal Tilt | -1.61 (negative is warmer, positive brighter) | -0.40 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+4.6 dB at 30 Hz) | Falls 6 dB below target at 40 Hz (-8.3 dB at 30 Hz) |
| Sensitivity | - | 99 dB |
| Built-in Microphone | - | Yes |
Frequency Response Compared
Both headphones’ measurements overlaid on the Harman target. Above the target sounds louder in that range, below it quieter. Each curve is the median of several independent measurements, shifted so its 500 Hz to 2 kHz average sits at 0 dB, so only the tuning is compared.
Measurement data: the 7Hz Legato from achoreviews, aftersound, ankramutt, audioamigo, bassyalexander, cammyfi, cqtek, csi-zone, fahryst, gadgetrytech, harpo, hbb, ianfann, mmagtech, musicafe, nymz, precog, pw, rg, soundcheck39, soundignity, theaudiostore, timmyv, tonedeafmonk, treblewellxtended, vortexreviews and vsg; the 1MORE Quad Driver from ekaudio, iemworld and zerostresslevel, all via squig.link.
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