Short answer: the 7Hz x Crinacle Zero 2. It ranks #465 of 1291 in-ear headphones by sound quality, rated 3.9/5, at $24.99; the ARTTI R3 ranks #600, rated 3.8/5, at $24.99. With prices this close, go by the sound-quality ranking rather than the cost.
What the 7Hz x Crinacle Zero 2 does well: Crinacle’s measurement gives it a preference score of 73, and an average deviation of just 2 dB from the Harman target is unusually even for a budget single dynamic driver. Watch for: Hobbyist measurements show the presence region about 3 dB shy of target with a 4.7 dB dip near 5.9 kHz, which can make guitars and vocal consonants sound a little veiled.
Why pick the ARTTI R3: A very cheap single dynamic in-ear with a 71 Harman preference score and full sub-bass extension down to 20 Hz. The catch: A 1.89 dB spread from the target still leaves some peaks and dips.
Buy the 7Hz x Crinacle Zero 2. It is rated higher for sound quality than the ARTTI R3 at the same price, so it is the default pick unless a specific strength of the other one matters more to you.
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Crinacle’s measurement gives it a preference score of 73, and an average deviation of just 2 dB from the Harman target is unusually even for a budget single dynamic driver.
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A very cheap single dynamic in-ear with a 71 Harman preference score and full sub-bass extension down to 20 Hz.
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Specifications Side By Side
| 7Hz x Crinacle Zero 2 | ARTTI R3 | |
|---|---|---|
| Price | $24.99 | $24.99 |
| Ranked | #465 of 1291 in In-Ear Headphones | #600 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Harman Preference Score | 73 (measured by crinacle, via AutoEQ) | 71 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.99 dB standard deviation | 1.89 dB standard deviation |
| Tonal Tilt | -0.71 (negative is warmer, positive brighter) | -0.66 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | 1 x 10mm dynamic |
| Impedance | 32 ohms | - |
| Sensitivity | 108 dB SPL/V | - |
| Frequency Response | 10Hz - 20kHz (Manufacturer specified) | - |
| Back | Closed | Closed |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.3 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.6 dB at 30 Hz) |
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 x Crinacle Zero 2 from achoreviews, aftersound, ankramutt, atechreviews, banzai1122, bassaudio, csi-zone, dentreviews, ekaudio, gadgetrytech, iemocean, jaytiss, mmagtech, obodio, pw, regancipher, sl0the, soundignity, suporsalad, tdl and vortexreviews; the ARTTI R3 from ankramutt, audioamigo, riz and tonedeafmonk, all via squig.link.
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