Short answer: the KZ ZS12 Pro X. Both are rated 4.0/5 for sound quality (#446 and #387 of 1291 in-ear headphones), and the KZ ZS12 Pro X costs $53.99 against $59.99 for the Moondrop Lan 2, and with sound quality even, the cheaper one is the better buy.
The case for the KZ ZS12 Pro X: The median of 6 hobbyist measurements gives it a solid Harman preference score of 73 with a 2.01 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural. The tradeoff: An 8.7 dB peak near 10.9 kHz can make cymbals and sibilance sound sharp.
Why pick the Moondrop Lan 2: The median of 6 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.82 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural. The tradeoff: Its 1.82 dB spread is less even than the best measured sets.
Buy the KZ ZS12 Pro X. Both are rated the same for sound quality, and it costs $6 less than the Moondrop Lan 2.
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The median of 6 hobbyist measurements gives it a solid Harman preference score of 73 with a 2.01 dB spread, and its mids sit within about 0.5 dB of target, so vocals and instruments sound natural.
Amazon $53.99 eBay
The median of 6 hobbyist measurements gives it a solid Harman preference score of 74 with a 1.82 dB spread, and its mids sit within about 0.6 dB of target, so vocals and instruments sound natural.
Amazon $59.99 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
| KZ ZS12 Pro X | Moondrop Lan 2 | |
|---|---|---|
| Price | $53.99 | $59.99 |
| Ranked | #446 of 1291 in In-Ear Headphones | #387 of 1291 in In-Ear Headphones |
| Form Factor | In-ear | In-ear |
| Back | Closed | Closed |
| Harman Preference Score | 73 (median of 6 squig.link measurements, calibrated to AutoEQ) | 74 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.01 dB standard deviation | 1.82 dB standard deviation |
| Tonal Tilt | +0.53 (negative is warmer, positive brighter) | -0.53 (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 (-0.4 dB at 30 Hz) |
| Connection | Wired | Wired |
| Driver Type | Hybrid (1 dynamic + 5 balanced armature) | Dynamic |
| Drivers | 1 x dynamic + 5 x balanced armature | 1 x 10mm dynamic |
| Impedance | 25 ohms | 30 ohms |
| Sensitivity | 106 dB/mW | 118 dB SPL/V |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) | 12Hz - 60kHz (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 KZ ZS12 Pro X from audioamigo, eplv, obodio, pw, tdl and tonedeafmonk; the Moondrop Lan 2 from atechreviews, audioamigo, bassaudio, hu-fi, practiphile and superreview, all via squig.link.
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