The Beyerdynamic DT 880 Edition (600Ω) is 600Ω at 96.0 dB (no reference unit printed); the Dan Clark Audio AEON 2 Closed is 13Ω 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 AEON 2 Closed needs 6.0 dB more than the Beyerdynamic DT 880 Edition (600Ω) to reach the same loudness — 10 mW against 2.5 mW.
| Specification | Beyerdynamic DT 880 Edition (600Ω) | Dan Clark Audio AEON 2 Closed |
|---|---|---|
| Impedance | 600 Ω | 13 Ω |
| Sensitivity | 96.0 dB | 90.0 dB/mW |
| Sensitivity (voltage) | 98.2 dB/V | 108.9 dB/V |
| Power for 100 dB | 2.5 mW | 10 mW |
| Voltage for 100 dB | 1.23 V | 0.36 V |
| Current for 100 dB | 2.0 mA | 27.7 mA |
| Highest source impedance that leaves them alone (one-eighth rule) | 75.00 Ω | 1.62 Ω |
| Sources that reach 100 dB out of 280 | 266 | 272 |
One caution before reading the rows. Beyerdynamic DT 880 Edition (600Ω) printed a decibel figure with no reference unit, so this page reads it as per milliwatt. If it is really per volt, that model needs far more than the table says. Why the two readings differ by so much.
5 of the 280 sources have the power for the Beyerdynamic DT 880 Edition (600Ω) but not for the Dan Clark Audio AEON 2 Closed — Audient EVO 4, Tascam US-2x2HR, Roland Rubix22, 2 more.
11 of the 280 sources have the power for the Dan Clark Audio AEON 2 Closed but not for the Beyerdynamic DT 880 Edition (600Ω) — Apple USB-C dongle (US), JadeAudio JA11, FiiO SnowSky Tiny A, 8 more.
39 sources are low enough in output impedance for the Beyerdynamic DT 880 Edition (600Ω) under the one-eighth rule but not for the Dan Clark Audio AEON 2 Closed (FiiO KA13, Zoom AMS-22, Audient EVO 4, 36 more).
261 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: Beyerdynamic DT 880 Edition (600Ω) and Dan Clark Audio AEON 2 Closed. Each figure on this page is labelled on those pages with where it came from, including the ones Beyerdynamic and Dan Clark Audio never published — what Beyerdynamic publishes and what Dan Clark Audio publishes, both counted.