Short answer: the Koss ESP95X. It ranks #230 of 481 over-ear headphones by sound quality, rated 3.6/5, at $799.99; the Moondrop Skyland ranks #262, rated 3.5/5, at $799.99. With prices this close, go by the sound-quality ranking rather than the cost.
Why pick the Koss ESP95X: Measured response gives it a solid Harman preference score of 72 with a 3.06 dB spread, and its mids sit within about 0.7 dB of target, so vocals and instruments sound natural. The tradeoff: Presence sits about 3.9 dB low with a 12.2 dB dip near 9.6 kHz, so vocals and instruments lose some bite.
The case for the Moondrop Skyland: An open-back planar magnetic over-ear with treble right on the Harman target and a 70 score across three measurements. The catch: Bass sits about 5.9 dB below target, so it sounds lean.
Buy the Koss ESP95X. It is rated higher for sound quality than the Moondrop Skyland at the same price, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Headphones rankings.
Measured response gives it a solid Harman preference score of 72 with a 3.06 dB spread, and its mids sit within about 0.7 dB of target, so vocals and instruments sound natural.
Amazon $799.99 eBay
An open-back planar magnetic over-ear with treble right on the Harman target and a 70 score across three measurements.
Moondrop $799.99 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
| Koss ESP95X | Moondrop Skyland | |
|---|---|---|
| Price | $799.99 | $799.99 |
| Ranked | #230 of 481 in Over-Ear Headphones | #262 of 481 in Over-Ear Headphones |
| Form Factor | Over-ear | Over-ear |
| Back | Open | Open |
| Connection | Wired | Wired |
| Driver Type | Electrostatic | Planar Magnetic |
| Impedance | 100,000 ohms | 60 ohms |
| Frequency Response | 8Hz - 35kHz | - |
| Weight | 0.8 lbs (353g) | - |
| Harman Preference Score | 72 (measured by oratory1990, via AutoEQ) | 70 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 3.06 dB standard deviation | 2.23 dB standard deviation |
| Tonal Tilt | -0.26 (negative is warmer, positive brighter) | +0.99 (negative is warmer, positive brighter) |
| Sub-bass Extension | Falls 6 dB below target at 67 Hz (-7.6 dB at 30 Hz) | Falls 6 dB below target at 40 Hz (-6.7 dB at 30 Hz) |
| Drivers | - | 1 x planar magnetic |
| Sensitivity | - | 96 dB/Vrms |
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 Koss ESP95X from capraaudio, sai, superreview and therollo9; the Moondrop Skyland from aden, sai and superreview, all via squig.link.
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