Both are Bluetooth receivers, $199 against $219. 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 BTR17 reaches 100 dB on 566 of the 567 models here, the iFi GO blu on 563.
| Specification | FiiO BTR17 | iFi GO blu |
|---|---|---|
| Power into 32Ω | 280 mW | 165 mW |
| Power into 150Ω | 60 mW | 35 mW |
| Power into 300Ω | 30 mW | 18 mW |
| Power into 600Ω | 15 mW | 8.8 mW |
| Output impedance | 1.0 Ω | 1.0 Ω |
| Output noise | 3.0 µV | not published |
| Price | $199 | $219 |
| Headphones it reaches 100 dB on out of 567 | 566 | 563 |
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.
3 headphones reach 100 dB on the FiiO BTR17 but not on the iFi GO blu — Moondrop PARA, Symphonium Crimson, Symphonium Helios.
563 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 BTR17 and iFi GO blu. Or put either against your own headphones in the source comparison tool.