The Moondrop Blessing 2 is 22Ω at 100.4 dB/mW; the Moondrop ILLUSTRIOUS is 25Ω at 108.0 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 2 needs 7.6 dB more than the ILLUSTRIOUS to reach the same loudness — 0.91 mW against 0.16 mW.
| Specification | Blessing 2 | ILLUSTRIOUS |
|---|---|---|
| Impedance | 22 Ω | 25 Ω |
| Sensitivity | 100.4 dB/mW | 108.0 dB/mW |
| Sensitivity (voltage) | 117.0 dB/V | 124.0 dB/V |
| Power for 100 dB | 0.91 mW | 0.16 mW |
| Voltage for 100 dB | 0.14 V | 63 mV |
| Current for 100 dB | 6.4 mA | 2.5 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 2.75 Ω | 3.12 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.
5 sources stay below the audible-hiss threshold with the Blessing 2 but cross it with the ILLUSTRIOUS (FiiO BTR11, FiiO K11 R2R, Lake People G111 Mk II, 2 more).
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 2 and Moondrop ILLUSTRIOUS. Every figure on this page comes from what Moondrop published, or is derived from it — what that maker publishes, counted.