Short answer: the Kiwi Ears Melody. It ranks #912 of 1369 in-ear headphones by sound quality, rated 3.3/5, at $9; the QoA Mimosa ranks #1040, rated 3.1/5, at $9. The price gap is small enough that the sound-quality ranking should decide it.
The case for the Kiwi Ears Melody: A broadly balanced tuning with a preference score of 66 against the Harman target. The catch: An uneven response, 2.4 dB standard deviation from target.
What the QoA Mimosa does well: About 3 dB more bass than the Harman target below 150 Hz, for listeners who want a fuller low end. Watch for: An uneven response, 2.5 dB standard deviation from target.
Buy the Kiwi Ears Melody. It is rated higher for sound quality than the QoA Mimosa at the same price, which makes it the one to get unless you need something the other one does better.
Still deciding? The full Headphones rankings cover every ranked option.
A broadly balanced tuning with a preference score of 66 against the Harman target.
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About 3 dB more bass than the Harman target below 150 Hz, for listeners who want a fuller low end.
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Specifications Side By Side
| Kiwi Ears Melody | QoA Mimosa | |
|---|---|---|
| Price | 9.00 | 9.00 |
| Ranked | #912 of 1369 in In-Ear Headphones | #1040 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 66 (median of 17 squig.link measurements, calibrated to AutoEQ) | 63 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.39 dB standard deviation | 2.52 dB standard deviation |
| Tonal Tilt | -0.81 (negative is warmer, positive brighter) | -0.95 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.8 dB at 30 Hz) |
| Driver Type | Planar | Hybrid |
| Drivers | 1 x 12mm planar magnetic driver | 1 DD + 1 Planar (1 x 10mm dynamic driver + 1 x 6mm micro-planar driver) |
| Impedance | 18 ohms | 32 ohms |
| Sensitivity | 102 dB | 102 dB |
| Frequency Response | 5Hz - 40kHz | 20Hz - 20kHz |
| Connection | Wired | Wired |
| Weight | - | 0 lbs (3.2 g) (per earbud) |
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 Kiwi Ears Melody from audioamigo, bassyalexander, boizoff, cqtek, hbb, ianfann, jaytiss, kazi, kuping-sensi, mmagtech, musicafe, practiphile, pw, soundcheck39, tonedeafmonk, vortexreviews and vsg; the QoA Mimosa from bassaudio, gadgetrytech, hu-fi, kazi, soundcheck39 and tonedeafmonk, all via squig.link.
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