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 is only about what they ask of an amplifier — not how they sound, which no specification on either sheet can tell you.
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. That count is about power only — the output-impedance and hiss lines above are separate questions, and a source can pass this one and fail those.
Each model has a page of its own with the full source list, the hiss estimate and the provenance of every figure above: 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.