The Moondrop SKYLAND is 60Ω at 83.8 dB/mW; the Moondrop Void is 64Ω at 98.1 dB/mW. This page covers what they ask of an amplifier, not how they sound.
The SKYLAND needs 14.3 dB more than the Void to reach the same loudness — 42 mW against 1.5 mW.
| Specification | SKYLAND | Void |
|---|---|---|
| Impedance | 60 Ω | 64 Ω |
| Sensitivity | 83.8 dB/mW | 98.1 dB/mW |
| Sensitivity (voltage) | 96.0 dB/V | 110.0 dB/V |
| Power for 100 dB | 42 mW | 1.5 mW |
| Voltage for 100 dB | 1.58 V | 0.31 V |
| Current for 100 dB | 26.4 mA | 4.9 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 7.50 Ω | 8.00 Ω |
| Sources that reach 100 dB out of 280 | 235 | 280 |
45 of the 280 sources have the power for the Void but not for the SKYLAND — Apple USB-C dongle (US), Apple USB-C dongle (EU), Generic CX31993 dongles, 42 more.
235 of the 280 sources here reach 100 dB on both.
The SKYLAND is more demanding than 99% of the 567 non-electrostatic models in this database; the Void than 76%.
| dB SPL | SKYLAND power | SKYLAND voltage | Void power | Void voltage |
|---|---|---|---|---|
| 80 | 0.42 mW | 0.16 V | 0.02 mW | 31 mV |
| 85 | 1.3 mW | 0.28 V | 0.05 mW | 56 mV |
| 90 | 4.2 mW | 0.50 V | 0.15 mW | 100 mV |
| 95 | 13 mW | 0.89 V | 0.49 mW | 0.18 V |
| 100 | 42 mW | 1.58 V | 1.5 mW | 0.31 V |
| 105 | 132 mW | 2.81 V | 4.9 mW | 0.56 V |
| Source | Price | Headroom, SKYLAND | Headroom, Void | Output impedance | Noise |
|---|---|---|---|---|---|
| FiiO KA11 | $29 | 4.1 dB | 18.1 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 1.0 dB | 15.1 dB | 0.6 Ω | 1.0 µV |
| iBasso DC03 Pro | $69 | 1.0 dB | 15.0 dB | 0.12 Ω | 0.9 µV |
Of the 280 sources here, 235 reach 100 dB on both. 67 of them also publish an output impedance low enough for both under the one-eighth rule and a noise figure that stays below the audible-hiss threshold with both.
The cheapest of the 67 is the FiiO KA11, at $29. It leaves 4.1 dB of headroom on the SKYLAND and 18.1 dB on the Void, its output impedance is 0.7 Ω against a one-eighth limit of 7.50 Ω and 8.00 Ω, and its noise figure puts the hiss floor 39 dB and 25 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
| Model | As printed | Tolerance | Standard |
|---|---|---|---|
| SKYLAND | 8Hz - 34kHz (IEC61094, FreeField) | not printed | IEC61094 (free field) |
| 20Hz - 20kHz (IEC60318-4, -3dB) | -3 dB | IEC60318-4 | |
| Void | 10Hz - 80kHz | not printed | not printed |
| 20Hz - 20kHz (IEC60318-4, -3dB) | -3 dB | IEC60318-4 |
Moondrop prints two ranges, “8Hz - 34kHz (IEC61094, FreeField)” and “20Hz - 20kHz (IEC60318-4, -3dB)”, for the SKYLAND and two ranges, “10Hz - 80kHz” and “20Hz - 20kHz (IEC60318-4, -3dB)”, for the Void.
Both sheets print a tolerance, which is rare enough to be worth pointing at: only 58 of the 490 models with a printed range do. These two ranges can be set against each other, because each of them says how far down the response is allowed to be at the ends.
Not a measurement; maker by maker.
Both have a page of their own. In full: Moondrop SKYLAND and Moondrop Void. Every figure on this page comes from what Moondrop published, or is derived from it — what that maker publishes, counted.