Are there any real comparison articles/reviews between the Fiio E10K? Sound quality wise, that is. I know about the different interfaces and buttons, but apart from reading "This thing is amazing for its price!" for BOTH products all over the place, I see no indication which one is better than the other by direct comparison. Both are ultra cheap combined DAC/Amps at under 100€.
Having heard both, I'd have to say that the Fulla 2 has it beaten hands down. It even makes sense, once you go back and poke at the specs, too. Although they're both just D/S DACs, the E10k is a PCM5102, while the Fulla 2 is a well-implemented design using a 4490, which is one of the better D/S DAC options. The Fulla 2 also outputs more power- for example, the E10K manages 200mW into 32 ohms, whereas the Fulla 2 can manage 360mW into 32 ohms.
The Fulla 2 is also a lot better with high Z cans, doing a surprisingly good job with even HD650s (for such a tiny, inexpensive unit). Using a couple of op-amps per channel clearly does good things. It really is a viable entry-level desktop unit to drive full-sized headphones. Yes, a full-sized mains powered amp will have it beaten, but at a multiple of the price.
The E10k was a very good budget device, but the Fulla 2 is just better engineered all-around (when.. it's not faulty
). It manages to pump out a surprising amount of that max 500mW that it's allowed to draw from USB power as good clean-sounding audio. You're not going to find a meaningful upgrade to it at anywhere near its price. Plus it has a big, smooth knob- and who doesn't love those?
Fiio has been justifiably popular in the "beginner" market for years, as they make cheap no-nonsense stuff that works pretty well. However, for the discriminating purchaser shopping for a "gateway drug" to give a friend or family a taste of "real" audio, or even as a cheap, clean headphone out for your work machine, Fulla 2 can't be beaten for the price.