Both are dongles, $70 against $40. 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 561 of the 567 non-electrostatic models here.
| Specification | Tanchjim Space | Tanchjim Stargate II |
|---|---|---|
| Power into 32Ω | 125 mW | 75 mW |
| Power into 150Ω | 27 mW | 16 mW |
| Power into 300Ω | 13 mW | 8.0 mW |
| Power into 600Ω | 6.7 mW | 4.0 mW |
| Output impedance | not published | not published |
| Output noise | 1.1 µV | not published |
| Price | $70 | $40 |
| Headphones it reaches 100 dB on out of 567 | 561 | 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.
2 headphones reach 100 dB on the Tanchjim Space but not on the Tanchjim Stargate II — HiFiMAN Susvara, Moondrop SKYLAND.
2 headphones reach 100 dB on the Tanchjim Stargate II but not on the Tanchjim Space — Moondrop COSMO, Symphonium Zenith.
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: Tanchjim Space and Tanchjim Stargate II. Or put either against your own headphones in the source comparison tool.