Short answer: the FiiO x JadeAudio JH5. It ranks #910 of 1369 in-ear headphones by sound quality, rated 3.3/5, at $9.99; the Apos Rock Lobster ranks #990, rated 3.2/5, at $9.99. With prices this close, go by the sound-quality ranking rather than the cost.
What the FiiO x JadeAudio JH5 does well: A broadly balanced tuning with a preference score of 66 against the Harman target. The catch: Treble about 2 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
The case for the Apos Rock Lobster: 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.
Buy the FiiO x JadeAudio JH5. It is rated higher for sound quality than the Apos Rock Lobster 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 broadly balanced tuning with a preference score of 66 against the Harman target.
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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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Specifications Side By Side
| FiiO x JadeAudio JH5 | Apos Rock Lobster | |
|---|---|---|
| Price | 9.99 | 9.99 |
| Ranked | #910 of 1369 in In-Ear Headphones | #990 of 1369 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 66 (median of 5 squig.link measurements, calibrated to AutoEQ) | 64 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.43 dB standard deviation | 2.43 dB standard deviation |
| Tonal Tilt | -0.69 (negative is warmer, positive brighter) | -1.01 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+0.9 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid | Dynamic |
| Drivers | 1 DD + 4 BA (1 x 10mm carbon-based dynamic driver + 4 x custom balanced armatures) | 1 x 10mm liquid crystal polymer (LCP) dynamic driver |
| Impedance | 13 ohms | 32 ohms |
| Sensitivity | 111 dB/mW | 105 dB |
| Frequency Response | 20Hz - 40,000Hz | 20Hz - 20kHz |
| Weight | 0 lbs (7.6 g) (per earpiece) | - |
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 FiiO x JadeAudio JH5 from ekaudio, flare, iemocean, joshtbvo and superreview; the Apos Rock Lobster from aden, audioamigo, awsmdanny, boizoff, jaytiss, lestat and tonedeafmonk, all via squig.link.
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