Both are desktop amplifiers, $1199 against $349. 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 Schiit Mjolnir 3 reaches 100 dB on 566 of the 567 models here, the Schiit Valhalla 2 on 561.
| Specification | Schiit Mjolnir 3 | Schiit Valhalla 2 |
|---|---|---|
| Power into 32Ω | 1.0 W | 115 mW |
| Power into 150Ω | 488 mW | 426 mW |
| Power into 300Ω | 500 mW | 800 mW |
| Power into 600Ω | 250 mW | 450 mW |
| Output impedance | 0.13 Ω | 14.0 Ω |
| Output noise | 25 µV unverified | not published |
| Price | $1199 | $349 |
| Headphones it reaches 100 dB on out of 567 | 566 | 561 |
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.
5 headphones reach 100 dB on the Schiit Mjolnir 3 but not on the Schiit Valhalla 2 — Moondrop COSMO, Moondrop PARA, Symphonium Crimson, 2 more.
522 headphones are left alone by the Schiit Mjolnir 3 under the one-eighth rule but coloured by the Schiit Valhalla 2 (64 Audio Aspire 1, 64 Audio Fourte, 64 Audio Nio, 519 more).
561 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 Mjolnir 3 and Schiit Valhalla 2. Or put either against your own headphones in the source comparison tool.