The Moondrop PARA is 8Ω at 80.0 dB/mW; the Moondrop PARA 2 is 9Ω at 85.5 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 PARA needs 5.5 dB more than the PARA 2 to reach the same loudness — 100 mW against 28 mW.
| Specification | PARA | PARA 2 |
|---|---|---|
| Impedance | 8 Ω | 9 Ω |
| Sensitivity | 80.0 dB/mW | 85.5 dB/mW |
| Sensitivity (voltage) | 101.0 dB/V | 106.0 dB/V |
| Power for 100 dB | 100 mW | 28 mW |
| Voltage for 100 dB | 0.89 V | 0.50 V |
| Current for 100 dB | 111.8 mA | 56.0 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 1.00 Ω | 1.12 Ω |
| Sources that reach 100 dB out of 280 | 130 | 223 |
93 of the 280 sources have the power for the PARA 2 but not for the PARA — FiiO SnowSky Tiny B, Tanchjim Stargate II, ddHiFi TC35Air, 90 more.
1 source is low enough in output impedance for the PARA 2 under the one-eighth rule but not for the PARA (Astell&Kern SR35).
130 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 PARA and Moondrop PARA 2. Every figure on this page comes from what Moondrop published, or is derived from it — what that maker publishes, counted.