Both are desktop amplifiers, $370 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 Geshelli Archel 3S Pro reaches 100 dB on 567 of the 567 models here, the Schiit Valhalla 2 on 561.
| Specification | Geshelli Archel 3S Pro | Schiit Valhalla 2 |
|---|---|---|
| Power into 32Ω | 1.0 W | 115 mW |
| Power into 150Ω | 213 mW | 426 mW |
| Power into 300Ω | 107 mW | 800 mW |
| Power into 600Ω | 53 mW | 450 mW |
| Output impedance | not published | 14.0 Ω |
| Output noise | not published | not published |
| Price | $370 | $349 |
| Headphones it reaches 100 dB on out of 567 | 567 | 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.
6 headphones reach 100 dB on the Geshelli Archel 3S Pro but not on the Schiit Valhalla 2 — Moondrop COSMO, Moondrop PARA, Symphonium Crimson, 3 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: Geshelli Archel 3S Pro and Schiit Valhalla 2. Or put either against your own headphones in the source comparison tool.