Both are audio interfaces, $599 against $720. This page puts them side by side on the only three things a maker can be held to — power, output impedance and noise — and then asks the question that actually matters: which headphones do they treat differently?
The Audient iD24 reaches 100 dB on 561 of the 567 models here, the Audient NERO on 559.
| Specification | Audient iD24 | Audient NERO |
|---|---|---|
| Power into 32Ω | 119 mW | 86 mW |
| Power into 150Ω | 80 mW | 23 mW |
| Power into 300Ω | 58 mW | 13 mW |
| Power into 600Ω | 52 mW | 7.4 mW |
| Output impedance | 50 Ω | not published |
| Output noise | not published | not published |
| Price | $599 | $720 |
| Headphones it reaches 100 dB on out of 567 | 561 | 559 |
A figure marked not published is missing from the maker’s own material, which is not the same as being good or bad. Where one of these two publishes a number and the other does not, the comparison on that axis cannot be made at all — and saying so is more useful than guessing.
2 headphones reach 100 dB on the Audient iD24 but not on the Audient NERO — Moondrop PARA 2, Moondrop VENUS.
559 of the 567 models here reach 100 dB on both. That is a power count and nothing more; whether either source suits a given headphone also depends on the two lines above.
Each has a page of its own with every power figure traced to what the maker published and a full headphone list: Audient iD24 and Audient NERO. Or put either against your own headphones in the source comparison tool.