Short answer: the AUNE Jasper. Both are rated 4.1/5 for sound quality (#317 and #348 of 1291 in-ear headphones), and the AUNE Jasper costs $239 against $250.99 for the Binary Dynaquattro, and with sound quality even, the cheaper one is the better buy.
Why pick the AUNE Jasper: A single 10mm dynamic IEM with a preference score of 75 and every band from bass to upper mids within 1.5 dB of target. Watch for: Sub-bass sits about 2.5 dB under target, so the deepest synth and organ notes have a little less weight than the best tunings deliver.
Why pick the Binary Dynaquattro: Across 16 squig.link measurements this dynamic set earns a preference score of 74.7 with a smooth 1.71 dB deviation, one of the tidier results at its price. The tradeoff: A 5.4 dB dip near 6.1 kHz takes some edge off snare hits and consonants, and a 3.7 dB peak at 8.4 kHz right above it can make cymbals sound a little splashy.
Buy the AUNE Jasper. Both are rated the same for sound quality, and it costs $11.99 less than the Binary Dynaquattro.
Looking for alternatives? See the complete Headphones rankings.
A single 10mm dynamic IEM with a preference score of 75 and every band from bass to upper mids within 1.5 dB of target.
Amazon $239.00 eBay
Across 16 squig.link measurements this dynamic set earns a preference score of 74.7 with a smooth 1.71 dB deviation, one of the tidier results at its price.
HiFiGo $250.99 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
| AUNE Jasper | Binary Dynaquattro | |
|---|---|---|
| Price | $239.00 | $250.99 |
| Ranked | #317 of 1291 in In-Ear Headphones | #348 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Harman Preference Score | 75 (measured by crinacle, via AutoEQ) | 75 (median of 16 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.29 dB standard deviation | 1.71 dB standard deviation |
| Tonal Tilt | +0.01 (negative is warmer, positive brighter) | -0.65 (negative is warmer, positive brighter) |
| Connection | Wired | Wired |
| Driver Type | Dynamic | Dynamic |
| Drivers | 1 x 10mm dynamic | - |
| Impedance | 32 ohms | 23 ohms |
| Sensitivity | 102 dB/mW | 111 dB/Vrms |
| Frequency Response | 5Hz - 40kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Back | Closed | Closed |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.1 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (+1.7 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 AUNE Jasper from achoreviews, aftersound, dchpgall, dentreviews, hbb and superreview; the Binary Dynaquattro from aftersound, atechreviews, audioamigo, awsmdanny, eliseaudio, elrics, gadgetgenerations, jaytiss, practiphile, pw, silicagel, sl0the, soundignity, superreview, theaudiostore, tonedeafmonk and treblewellxtended, all via squig.link.
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