The Audeze LCD-2 Classic is 70Ω at 101.0 dB/mW; the Dan Clark Audio Stealth is 23Ω at 90.0 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 Dan Clark Audio Stealth needs 11.0 dB more than the Audeze LCD-2 Classic to reach the same loudness — 10 mW against 0.79 mW.
| Specification | Audeze LCD-2 Classic | Dan Clark Audio Stealth |
|---|---|---|
| Impedance | 70 Ω | 23 Ω |
| Sensitivity | 101.0 dB/mW | 90.0 dB/mW |
| Sensitivity (voltage) | 112.5 dB/V | 106.4 dB/V |
| Power for 100 dB | 0.79 mW | 10 mW |
| Voltage for 100 dB | 0.24 V | 0.48 V |
| Current for 100 dB | 3.4 mA | 20.9 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 8.75 Ω | 2.88 Ω |
| Sources that reach 100 dB out of 280 | 280 | 279 |
1 of the 280 sources has the power for the Audeze LCD-2 Classic but not for the Dan Clark Audio Stealth — Steinberg UR22C.
1 source is low enough in output impedance for the Audeze LCD-2 Classic under the one-eighth rule but not for the Dan Clark Audio Stealth (Shanling H5).
279 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: Audeze LCD-2 Classic and Dan Clark Audio Stealth. Every figure on this page comes from what Audeze and Dan Clark Audio published, or is derived from it — what Audeze publishes and what Dan Clark Audio publishes, both counted.