Short answer: the Tangzu Fudu. Both are rated 3.3/5 for sound quality (#927 and #961 of 1369 in-ear headphones), and the Tangzu Fudu costs $89 against $99 for the Sound Rhyme SR10, so with nothing between them on sound quality, price settles it.
Why pick the Sound Rhyme SR10: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap. Watch for: Treble about 3 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
What the Tangzu Fudu does well: Bass is lifted about 2.7 dB with extension to 20 Hz, giving kick drums and bass lines extra weight. The tradeoff: Presence sits about 3.7 dB low with a 5.9 dB dip near 5.9 kHz, so vocals and instruments lose some bite.
Buy the Tangzu Fudu. Both are rated the same for sound quality, and it costs $10 less than the Sound Rhyme SR10.
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A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
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Bass is lifted about 2.7 dB with extension to 20 Hz, giving kick drums and bass lines extra weight.
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Specifications Side By Side
| Sound Rhyme SR10 | Tangzu Fudu | |
|---|---|---|
| Price | 99.00 | $89.00 |
| Ranked | #961 of 1369 in In-Ear Headphones | #927 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) | 65 (median of 12 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.39 dB standard deviation | 2.41 dB standard deviation |
| Tonal Tilt | -1.03 (negative is warmer, positive brighter) | -0.88 (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 (+0.9 dB at 30 Hz) |
| Driver Type | Tribrid | Hybrid |
| Drivers | 10 drivers (2 dynamic drivers + 4 balanced armatures + 4 micro planar drivers) | 1 x 10mm dynamic + 2 x balanced armature |
| Impedance | 18 ohms | 16 ohms |
| Sensitivity | 115 dB | - |
| Frequency Response | 10Hz - 40kHz | - |
| 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 Tangzu Fudu from bassyalexander, csi-zone, harpo, hbb, ianfann, koi, mmagtech, rg, soundcheck39, soundignity, therollo9 and timmyv, all via squig.link.
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