Short answer: the Sound Rhyme SR10. It ranks #961 of 1369 in-ear headphones by sound quality, rated 3.3/5, at $99; the Letshuoer S08 ranks #1024, rated 3.1/5, at $99. With prices this close, go by the sound-quality ranking rather than the cost.
What the Sound Rhyme SR10 does well: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap. The tradeoff: Treble about 3 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Why pick the Letshuoer S08: Its 13 mm planar driver keeps bass full and extended to 20 Hz across 29 measurements, with lower mids close to target. The catch: The presence region is about 6 dB low with a 7.7 dB dip near 3.5 kHz, so vocals sound recessed and lack clarity.
Buy the Sound Rhyme SR10. It is rated higher for sound quality than the Letshuoer S08 at the same price, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Headphones rankings.
A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
Penon Audio eBay
Its 13 mm planar driver keeps bass full and extended to 20 Hz across 29 measurements, with lower mids close to target.
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Specifications Side By Side
| Sound Rhyme SR10 | Letshuoer S08 | |
|---|---|---|
| Price | 99.00 | $99.00 |
| Ranked | #961 of 1369 in In-Ear Headphones | #1024 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 65 (median of 3 squig.link measurements, calibrated to AutoEQ) | 63 (median of 29 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.39 dB standard deviation | 2.73 dB standard deviation |
| Tonal Tilt | -1.03 (negative is warmer, positive brighter) | -0.75 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.0 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.4 dB at 30 Hz) |
| Driver Type | Tribrid | Planar |
| Drivers | 10 drivers (2 dynamic drivers + 4 balanced armatures + 4 micro planar drivers) | 1 x 13mm planar magnetic |
| Impedance | 18 ohms | 26 ohms |
| Sensitivity | 115 dB | - |
| Frequency Response | 10Hz - 40kHz | 20Hz - 40kHz (Manufacturer specified) |
| Connection | Wired | Wired |
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 Sound Rhyme SR10 from atechreviews, flare and sl0the; the Letshuoer S08 from achoreviews, aftersound, atechreviews, audioamigo, awsmdanny, banzai1122, breampike, cqtek, csi-zone, eplv, fahryst, flare, gadgetrytech, hadoe, hbb, jaytiss, koi, kuping-sensi, listener, lown-fi, lumerion, obodio, practiphile, pw, soundcheck39, soundignity, superreview, tonedeafmonk and vortexreviews, all via squig.link.
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