I bought this because after getting the AM2 last time I realized I’d been screwed over. Because right after I bought it, FiiO said: “Every X7 owner gets one chance to buy a module at half price.” So I said: “Well what about me, I already paid full price?” FiiO was very polite about it: “No problem, we’ll have other modules down the road, you can save it for next time.” ……………… So I finally used that chance.

The FiiO X7 is a player I’ve grown to like more the longer I use it, but I still have to say it has one fatal flaw: the stock AM1 amp module is just crippled. On some tracks the X7 has a spiky, gritty treble, but when I run the X7’s LO output into my car stereo those treble spikes disappear. Think about it long enough and the only explanation is that crippled amp. Maybe FiiO did it on purpose, but at least they did release the official mid-tier AM2 amp, and swapping modules is easy — all you need is one hex screw.

I’ve been using the FiiO X7 for a while now, and there are a few problems: When playing songs, it stalls once at intervals ranging from 30 seconds to 1 minute; the stall lasts about 20 seconds before playback resumes. Battery life feels like it should be around the official 9 hours, but standby is a real weak point. It ought to have auto-shutdown. Any artist name in English gets displayed in all caps. Firmware updates can only be done by copying to an SD card—it’s supposedly a smart device but doesn’t support Wi-Fi updates. The breathing light stays on constantly, which is light pollution at night. The machine formats cards as exfat, which doesn’t support long file names. So I was grumbling about all this when I saw FiiO had released firmware 1.3. The update method is the same as for older devices, but 1.3 did fix quite a few things. First, the breathing light is now configurable. Second, there’s now a mode that auto-shuts down after a set number of minutes in standby, so long standby periods won’t drain much battery. Overall it should now beat the ZX1. But the most infuriating problem—playback stopping—still isn’t fixed. I emailed FiiO, and they suggested I try a different card.