Short answer: the Moondrop Rays. Both are rated 4.1/5 for sound quality (#313 and #364 of 1291 in-ear headphones), and the Moondrop Rays costs $99.99 against $105 for the BEEP Audio Azure, with sound quality a draw, the lower price decides it.
What the BEEP Audio Azure does well: A broadly balanced tuning with a preference score of 75 against the Harman target. The catch: An uneven response, 1.9 dB standard deviation from target.
The case for the Moondrop Rays: A hybrid of a 10mm dynamic driver and a 6mm planar magnetic driver with an inline microphone, scoring 75 on the preference scale in squig.link hobbyist measurements. Watch for: Treble from 6 to 10 kHz sits about 3 dB low with a 5.7 dB dip near 10.5 kHz, so cymbals and detail sound dull and distant.
Buy the Moondrop Rays. Both are rated the same for sound quality, and it costs $5.01 less than the BEEP Audio Azure.
Still deciding? The full Headphones rankings cover every ranked option.
A broadly balanced tuning with a preference score of 75 against the Harman target.
e-earphone (JP) eBay
A hybrid of a 10mm dynamic driver and a 6mm planar magnetic driver with an inline microphone, scoring 75 on the preference scale in squig.link hobbyist measurements.
Amazon $99.99 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
| BEEP Audio Azure | Moondrop Rays | |
|---|---|---|
| Price | $105 | $99.99 |
| Ranked | #364 of 1291 in In-Ear Headphones | #313 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 75 (median of 6 squig.link measurements, calibrated to AutoEQ) | 75 (median of 17 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 1.92 dB standard deviation | 1.95 dB standard deviation |
| Tonal Tilt | +0.27 (negative is warmer, positive brighter) | -0.05 (negative is warmer, positive brighter) |
| 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 (-4.6 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid | Hybrid (1 dynamic + 1 planar magnetic) |
| Drivers | 2 x dynamic + 1 x balanced armature | 1 x 10mm dynamic + 1 x 6mm planar magnetic |
| Impedance | 14 ohms | 30 ohms |
| Sensitivity | 105 dB/mW | 120 dB SPL/Vrms |
| Frequency Response | - | 7Hz - 39kHz (Manufacturer specified) |
| Built-in Microphone | - | Yes |
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 BEEP Audio Azure from audioamigo, digaoreviews, eplv, jaytiss, pw and soundcheck39; the Moondrop Rays from aden, aftersound, audioamigo, bassaudio, bedrock, boizoff, csi-zone, fahryst, fernandagunsan, hu-fi, koi, practiphile, pw, soundignity, superreview, suporsalad and timmyv, all via squig.link.
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