The Moondrop Blessing 3 is 14.8Ω at 101.7 dB/mW; the Moondrop Starfield II is 15Ω at 103.8 dB/mW. This page covers what they ask of an amplifier, not how they sound.
The Blessing 3 needs 2.1 dB more than the Starfield II to reach the same loudness — 0.68 mW against 0.42 mW.
| Specification | Blessing 3 | Starfield II |
|---|---|---|
| Impedance | 14.8 Ω | 15 Ω |
| Sensitivity | 101.7 dB/mW | 103.8 dB/mW |
| Sensitivity (voltage) | 120.0 dB/V | 122.0 dB/V |
| Power for 100 dB | 0.68 mW | 0.42 mW |
| Voltage for 100 dB | 0.10 V | 79 mV |
| Current for 100 dB | 6.8 mA | 5.3 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 1.85 Ω | 1.88 Ω |
| Sources that reach 100 dB out of 280 | 280 | 280 |
Every source in the database that drives one of them drives the other. On power, the choice between these two changes nothing about what amplifier you need.
2 sources stay below the audible-hiss threshold with the Blessing 3 but cross it with the Starfield II (FiiO BTR11, Rupert Neve RNHP).
280 of the 280 sources here reach 100 dB on both.
The Blessing 3 is more demanding than 32% of the 567 non-electrostatic models in this database; the Starfield II than 25%.
| dB SPL | Blessing 3 power | Blessing 3 voltage | Starfield II power | Starfield II voltage |
|---|---|---|---|---|
| 80 | 6.8 µW | 10 mV | 4.2 µW | 8 mV |
| 85 | 0.02 mW | 18 mV | 0.01 mW | 14 mV |
| 90 | 0.07 mW | 32 mV | 0.04 mW | 25 mV |
| 95 | 0.21 mW | 56 mV | 0.13 mW | 44 mV |
| 100 | 0.68 mW | 0.10 V | 0.42 mW | 79 mV |
| 105 | 2.1 mW | 0.18 V | 1.3 mW | 0.14 V |
| Source | Price | Headroom, Blessing 3 | Headroom, Starfield II | Output impedance | Noise |
|---|---|---|---|---|---|
| JadeAudio JA11 | $20 | 13.1 dB | 15.3 dB | 0.5 Ω | 1.7 µV |
| FiiO KA11 | $29 | 25.3 dB | 27.4 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 22.2 dB | 24.3 dB | 0.6 Ω | 1.0 µV |
Of the 280 sources here, 280 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 JadeAudio JA11, at $20. It leaves 13.1 dB of headroom on the Blessing 3 and 15.3 dB on the Starfield II, its output impedance is 0.5 Ω against a one-eighth limit of 1.85 Ω and 1.88 Ω, and its noise figure puts the hiss floor 15 dB and 13 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
| Model | As printed | Tolerance | Standard |
|---|---|---|---|
| Blessing 3 | 10Hz-30kHz | not printed | not printed |
| 20Hz-20kHz (IEC60318-4, -3dB) | -3 dB | IEC60318-4 | |
| Starfield II | 12Hz-24kHz (IEC61094, Free Field) | not printed | IEC61094 (free field) |
| 20Hz-20kHz (IEC60318-4, -3dB) | -3 dB | IEC60318-4 |
Moondrop prints two ranges, “10Hz-30kHz” and “20Hz-20kHz (IEC60318-4, -3dB)”, for the Blessing 3 and two ranges, “12Hz-24kHz (IEC61094, Free Field)” and “20Hz-20kHz (IEC60318-4, -3dB)”, for the Starfield II.
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 Blessing 3 and Moondrop Starfield II. Every figure on this page comes from what Moondrop published, or is derived from it — what that maker publishes, counted.