Both are portable amplifiers, $599 against $499. 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 xDuoo XD05 Bal reaches 100 dB on 566 of the 567 models here, the iFi xDSD Gryphon on 565.
| Specification | iFi xDSD Gryphon | xDuoo XD05 Bal |
|---|---|---|
| Power into 32Ω | 320 mW | 1.0 W |
| Power into 150Ω | 73 mW | 213 mW |
| Power into 300Ω | 40 mW | 107 mW |
| Power into 600Ω | 20 mW | 53 mW |
| Output impedance | 1.0 Ω | not published |
| Output noise | not published | not published |
| Price | $599 | $499 |
| Headphones it reaches 100 dB on out of 567 | 565 | 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 xDuoo XD05 Bal but not on the iFi xDSD Gryphon — Moondrop PARA.
565 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: iFi xDSD Gryphon and xDuoo XD05 Bal. Or put either against your own headphones in the source comparison tool.