Both are desktop amplifiers, $799 against $1199. 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 Aune S17 Pro EVO reaches 100 dB on 567 of the 567 models here, the Schiit Mjolnir 3 on 566.
| Specification | Aune S17 Pro EVO | Schiit Mjolnir 3 |
|---|---|---|
| Power into 32Ω | 2.0 W | 1.0 W |
| Power into 150Ω | 464 mW | 488 mW |
| Power into 300Ω | 235 mW | 500 mW |
| Power into 600Ω | 117 mW | 250 mW |
| Output impedance | 1 Ω | 0.13 Ω |
| Output noise | not published | 25 µV unverified |
| Price | $799 | $1199 |
| Headphones it reaches 100 dB on out of 567 | 567 | 566 |
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.
1 headphone reaches 100 dB on the Aune S17 Pro EVO but not on the Schiit Mjolnir 3 — Symphonium Titan.
15 headphones are left alone by the Schiit Mjolnir 3 under the one-eighth rule but coloured by the Aune S17 Pro EVO (64 Audio Nio, 64 Audio Volur, Campfire Audio Andromeda 2023, 12 more).
566 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: Aune S17 Pro EVO and Schiit Mjolnir 3. Or put either against your own headphones in the source comparison tool.