Both are desktop amplifiers, $99 against $149. 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?
On raw power they are level: each reaches 100 dB on 567 of the 567 non-electrostatic models here.
| Specification | Schiit Magni Heresy | Schiit Vali 3 |
|---|---|---|
| Power into 32Ω | 2.4 W | 1.5 W |
| Power into 150Ω | 641 mW | 496 mW |
| Power into 300Ω | 410 mW | 400 mW |
| Power into 600Ω | 215 mW | 200 mW |
| Output impedance | 0.25 Ω | 0.5 Ω |
| Output noise | 1.5 µV unverified | not published |
| Price | $99 | $149 |
| Headphones it reaches 100 dB on out of 567 | 567 | 567 |
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.
On power they are interchangeable across this whole database: there is no headphone here that one reaches 100 dB on and the other does not.
1 headphone is left alone by the Schiit Magni Heresy under the one-eighth rule but coloured by the Schiit Vali 3 (Symphonium Titan).
567 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: Schiit Magni Heresy and Schiit Vali 3. Or put either against your own headphones in the source comparison tool.