The Moondrop Armature Art 24 is 5.8Ω at 96.6 dB/mW; the Moondrop Blessing 2 Dusk is 22Ω at 106.0 dB (no figure from the maker at all). This page covers what they ask of an amplifier, not how they sound.
The Armature Art 24 needs 9.4 dB more than the Blessing 2 Dusk to reach the same loudness — 2.2 mW against 0.25 mW.
| Specification | Armature Art 24 | Blessing 2 Dusk |
|---|---|---|
| Impedance | 5.8 Ω | 22 Ω |
| Sensitivity | 96.6 dB/mW | 106.0 dB |
| Sensitivity (voltage) | 119.0 dB/V | 122.6 dB/V |
| Power for 100 dB | 2.2 mW | 0.25 mW |
| Voltage for 100 dB | 0.11 V | 74 mV |
| Current for 100 dB | 19.4 mA | 3.4 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 0.72 Ω | 2.75 Ω |
| Sources that reach 100 dB out of 280 | 279 | 280 |
One caution before reading the rows. For Moondrop Blessing 2 Dusk the maker publishes no sensitivity figure at all. The number in the table was collected when this database was first built and has never been traced to a manufacturer document, so treat every row below it as an estimate rather than a specification.
1 of the 280 sources has the power for the Blessing 2 Dusk but not for the Armature Art 24 — Steinberg UR22C.
49 sources are low enough in output impedance for the Blessing 2 Dusk under the one-eighth rule but not for the Armature Art 24 (FiiO SnowSky Tiny B, FiiO KA13, FiiO KA15, 46 more).
2 sources stay below the audible-hiss threshold with the Armature Art 24 but cross it with the Blessing 2 Dusk (FiiO BTR11, Rupert Neve RNHP).
279 of the 280 sources here reach 100 dB on both.
The Armature Art 24 is more demanding than 37% of the 567 non-electrostatic models in this database; the Blessing 2 Dusk than 23%.
| dB SPL | Armature Art 24 power | Armature Art 24 voltage | Blessing 2 Dusk power | Blessing 2 Dusk voltage |
|---|---|---|---|---|
| 80 | 0.02 mW | 11 mV | 2.5 µW | 7 mV |
| 85 | 0.07 mW | 20 mV | 7.9 µW | 13 mV |
| 90 | 0.22 mW | 36 mV | 0.03 mW | 24 mV |
| 95 | 0.69 mW | 63 mV | 0.08 mW | 42 mV |
| 100 | 2.2 mW | 0.11 V | 0.25 mW | 74 mV |
| 105 | 6.9 mW | 0.20 V | 0.79 mW | 0.13 V |
| Source | Price | Headroom, Armature Art 24 | Headroom, Blessing 2 Dusk | Output impedance | Noise |
|---|---|---|---|---|---|
| JadeAudio JA11 | $20 | 4.0 dB | 19.1 dB | 0.5 Ω | 1.7 µV |
| FiiO KA11 | $29 | 16.1 dB | 29.4 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 13.0 dB | 26.3 dB | 0.6 Ω | 1.0 µV |
Of the 280 sources here, 279 reach 100 dB on both. 41 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 41 is the JadeAudio JA11, at $20. It leaves 4.0 dB of headroom on the Armature Art 24 and 19.1 dB on the Blessing 2 Dusk, its output impedance is 0.5 Ω against a one-eighth limit of 0.72 Ω and 2.75 Ω, and its noise figure puts the hiss floor 16 dB and 13 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
Both have a page of their own. In full: Moondrop Armature Art 24 and Moondrop Blessing 2 Dusk. Each figure on this page is labelled on those pages with where it came from, including the ones Moondrop never published — what that maker publishes, counted.