The Campfire Audio Andromeda 2023 is 6.375Ω at 110.6 dB/mW; the Campfire Audio Clara is 13.3Ω at 115.3 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 Andromeda 2023 needs 4.7 dB more than the Clara to reach the same loudness — 0.09 mW against 0.03 mW.
| Specification | Andromeda 2023 | Clara |
|---|---|---|
| Impedance | 6.375 Ω | 13.3 Ω |
| Sensitivity | 110.6 dB/mW | 115.3 dB/mW |
| Sensitivity (voltage) | 132.6 dB/V | 134.1 dB/V |
| Power for 100 dB | 0.09 mW | 0.03 mW |
| Voltage for 100 dB | 24 mV | 20 mV |
| Current for 100 dB | 3.7 mA | 1.5 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 0.80 Ω | 1.66 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.
44 sources are low enough in output impedance for the Clara under the one-eighth rule but not for the Andromeda 2023 (FiiO SnowSky Tiny B, FiiO KA15, FiiO BTR15, 41 more).
7 sources stay below the audible-hiss threshold with the Andromeda 2023 but cross it with the Clara (JDS Labs Atom+ (2nd gen), FiiO BTR15, FiiO BTR5 2021, 4 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: Campfire Audio Andromeda 2023 and Campfire Audio Clara. Every figure on this page comes from what Campfire Audio published, or is derived from it — what that maker publishes, counted.