Short answer: the AFUL Performer8. Both are rated 4.1/5 for sound quality (#340 and #374 of 1291 in-ear headphones), and the AFUL Performer8 costs $364.99 against $399 for the 7Hz Aurora, so with nothing between them on sound quality, price settles it.
What the 7Hz Aurora does well: The median of 6 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.96 dB spread. The tradeoff: A 6.9 dB peak near 10.3 kHz can make cymbals and sibilance sound sharp.
What the AFUL Performer8 does well: Its 1DD plus 7BA tuning is smooth and fatigue free across 30 measurements, with a 1.84 dB spread and a Harman preference score of 75. The tradeoff: Presence dips about 5 dB with a 6.3 dB low point near 3 kHz, which softens vocal attack, and sub-bass is 2.8 dB short at 30 Hz.
Buy the AFUL Performer8. Both are rated the same for sound quality, and it costs $34.01 less than the 7Hz Aurora.
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The median of 6 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.96 dB spread.
Linsoul $399.00 eBay
Its 1DD plus 7BA tuning is smooth and fatigue free across 30 measurements, with a 1.84 dB spread and a Harman preference score of 75.
HiFiGo $364.99 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| 7Hz Aurora | AFUL Performer8 | |
|---|---|---|
| Price | $399.00 | $364.99 |
| Ranked | #374 of 1291 in In-Ear Headphones | #340 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 74 (median of 6 squig.link measurements, calibrated to AutoEQ) | 75 (median of 30 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.96 dB standard deviation | 1.84 dB standard deviation |
| Tonal Tilt | -0.28 (negative is warmer, positive brighter) | -0.21 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.4 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-2.8 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 1 planar magnetic + 2 balanced armature) | Hybrid |
| Drivers | 1 x 12mm dynamic + 1 x 6mm planar magnetic + 2 x balanced armature | 1 x dynamic + 7 x balanced armature |
| Impedance | 30 ohms | 30 ohms |
| Sensitivity | 105 dB SPL/V | 115 dB/Vrms |
| Frequency Response | 5Hz - 40kHz (Manufacturer specified) | 5Hz - 35kHz (Manufacturer specified) |
| Built-in Microphone | No | - |
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 Aurora from aftersound, hobbytalk, jaytiss, mmagtech, soundcheck39 and vortexreviews; the AFUL Performer8 from adri-n, aftersound, ankramutt, atechreviews, audioamigo, banzai1122, dl, ducbloke, gadgetgenerations, hu-fi, iemocean, iemworld, isaiahse, jaytiss, koi, kr0mka, lown-fi, mmagtech, nymz, practiphile, pw, recode, scboy, sl0the, soundcheck39, superreview, therollo9, timmyv, tonedeafmonk and vsg, all via squig.link.
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