The Campfire Audio Clara is 13.3Ω at 115.3 dB/mW; the Campfire Audio Solaris 2020 is 15Ω at 94.0 dB (no figure from the maker at all). This page covers what they ask of an amplifier, not how they sound.
The Solaris 2020 needs 21.3 dB more than the Clara to reach the same loudness — 4.0 mW against 0.03 mW.
| Specification | Clara | Solaris 2020 |
|---|---|---|
| Impedance | 13.3 Ω | 15 Ω |
| Sensitivity | 115.3 dB/mW | 94.0 dB |
| Sensitivity (voltage) | 134.1 dB/V | 112.2 dB/V |
| Power for 100 dB | 0.03 mW | 4.0 mW |
| Voltage for 100 dB | 20 mV | 0.24 V |
| Current for 100 dB | 1.5 mA | 16.3 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 1.66 Ω | 1.88 Ω |
| Sources that reach 100 dB out of 280 | 280 | 280 |
One caution before reading the rows. For Campfire Audio Solaris 2020 the maker publishes no sensitivity figure at all. The number in the table was collected when this database was first built and has never been traced to a manufacturer document, so treat every row below it as an estimate rather than a specification.
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 are low enough in output impedance for the Solaris 2020 under the one-eighth rule but not for the Clara (FiiO KA13, Schiit Vali 2+).
47 sources stay below the audible-hiss threshold with the Solaris 2020 but cross it with the Clara (Kiwi Ears Allegro Mini, FiiO BTR11, FiiO KA13, 44 more).
280 of the 280 sources here reach 100 dB on both.
The Solaris 2020 is more demanding than 66% of the 567 non-electrostatic models in this database; the Clara than 1%.
| dB SPL | Clara power | Clara voltage | Solaris 2020 power | Solaris 2020 voltage |
|---|---|---|---|---|
| 80 | 0.3 µW | 2 mV | 0.04 mW | 24 mV |
| 85 | 0.9 µW | 4 mV | 0.13 mW | 43 mV |
| 90 | 3.0 µW | 6 mV | 0.40 mW | 77 mV |
| 95 | 9.3 µW | 11 mV | 1.3 mW | 0.14 V |
| 100 | 0.03 mW | 20 mV | 4.0 mW | 0.24 V |
| 105 | 0.09 mW | 35 mV | 13 mW | 0.43 V |
| Source | Price | Headroom, Clara | Headroom, Solaris 2020 | Output impedance | Noise |
|---|---|---|---|---|---|
| JadeAudio JA11 | $20 | 26.3 dB | 5.5 dB | 0.5 Ω | 1.7 µV |
| FiiO KA11 | $29 | 38.4 dB | 17.6 dB | 0.7 Ω | 1.7 µV |
| FiiO BTR13 | $59 | 35.3 dB | 14.5 dB | 0.6 Ω | 1.0 µV |
Of the 280 sources here, 280 reach 100 dB on both. 27 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 27 is the JadeAudio JA11, at $20. It leaves 26.3 dB of headroom on the Clara and 5.5 dB on the Solaris 2020, its output impedance is 0.5 Ω against a one-eighth limit of 1.66 Ω and 1.88 Ω, and its noise figure puts the hiss floor 1 dB and 23 dB below the 20 dB SPL this site treats as the point where a quiet room stops hiding it.
Both have a page of their own. In full: Campfire Audio Clara and Campfire Audio Solaris 2020. Each figure on this page is labelled on those pages with where it came from, including the ones Campfire Audio never published — what that maker publishes, counted.