Short answer: a tie on sound quality. Both are rated 4.1/5 (#313 and #320 of 1291 in-ear headphones) at nearly the same price ($99.99 vs $99), so choose on features and fit.
Why pick 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. The tradeoff: 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.
Why pick the ThieAudio Legacy 2: A hybrid in-ear pairing a 10mm dynamic driver with a balanced armature, with a clean, correctly weighted sound and a 75 preference score. The tradeoff: Presence runs about 2.9 dB and air about 3.4 dB below target, with a 6.8 dB dip near 11.9 kHz, so cymbals lack some sparkle and the top end feels slightly reserved.
Buy the Moondrop Rays or the ThieAudio Legacy 2 on features: they are rated the same for sound quality at close to the same price.
Still deciding? The full Headphones rankings cover every ranked option.
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 eBay
A hybrid in-ear pairing a 10mm dynamic driver with a balanced armature, with a clean, correctly weighted sound and a 75 preference score.
AliExpress $99.00 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| Moondrop Rays | ThieAudio Legacy 2 | |
|---|---|---|
| Price | $99.99 | $99.00 |
| Ranked | #313 of 1291 in In-Ear Headphones | #320 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 75 (median of 17 squig.link measurements, calibrated to AutoEQ) | 75 (measured by crinacle, via AutoEQ) |
| Deviation From Target | 1.95 dB standard deviation | 2.10 dB standard deviation |
| Tonal Tilt | -0.05 (negative is warmer, positive brighter) | +0.11 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.6 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-0.5 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 1 planar magnetic) | Hybrid (1 dynamic + 1 balanced armature) |
| Drivers | 1 x 10mm dynamic + 1 x 6mm planar magnetic | 1 x 10mm dynamic + 1 x balanced armature |
| Impedance | 30 ohms | 32 ohms |
| Sensitivity | 120 dB SPL/Vrms | 108 dB |
| Frequency Response | 7Hz - 39kHz (Manufacturer specified) | 20Hz - 20kHz (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 Moondrop Rays from aden, aftersound, audioamigo, bassaudio, bedrock, boizoff, csi-zone, fahryst, fernandagunsan, hu-fi, koi, practiphile, pw, soundignity, superreview, suporsalad and timmyv; the ThieAudio Legacy 2 from achoreviews, audioamigo, bedrock, csi-zone, dchpgall, dentreviews, ducbloke, gadgetrytech, hbb, precog, pw, soundignity, superreview and vsg, all via squig.link.
Related Headphone Comparisons
How Moondrop Rays compares with other leading options: