Both are portable amplifiers, $750 against $599. 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 FiiO Q7 reaches 100 dB on 567 of the 567 models here, the iFi xDSD Gryphon on 565.
| Specification | FiiO Q7 | iFi xDSD Gryphon |
|---|---|---|
| Power into 32Ω | 550 mW | 320 mW |
| Power into 150Ω | 123 mW | 73 mW |
| Power into 300Ω | 65 mW | 40 mW |
| Power into 600Ω | 33 mW | 20 mW |
| Output impedance | 1.2 Ω | 1.0 Ω |
| Output noise | 2.8 µV | not published |
| Price | $750 | $599 |
| Headphones it reaches 100 dB on out of 567 | 567 | 565 |
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 FiiO Q7 but not on the iFi xDSD Gryphon — Moondrop PARA, Symphonium Titan.
23 headphones are left alone by the iFi xDSD Gryphon under the one-eighth rule but coloured by the FiiO Q7 (64 Audio Ocean, 64 Audio U18s, 64 Audio U6t, 20 more).
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: FiiO Q7 and iFi xDSD Gryphon. Or put either against your own headphones in the source comparison tool.