Small, smart and really sounds good.

Very nice device. Good sound, easy to use, analog volume regulator :) And small price. Ideal for 100-300$ headphones.

Very good sounding unit in its own right (and there are probably headphones that would be well served by the bass boost).

I've been using the FiiO E10 with ATH-M50 headphones for 6 months now and I love it.

The 3.5mm slot is not working 100%, static noise from it on and off. Also after an hour of use I have to unplug it and plug it in again because there is some odd sounds in the background.

This is one amazing piece of equipment. It dramatically improved the sound from my computer speakers and the difference with a good set of headphones is nothing short of spectacular. I would recommend this to anyone looking for better sound from their computers.

The FiiO E10 is a good amp and DAC. It does not produce interference cause by other electronics when plugged directly to a computer USB. It features a coax out and line out for integration with an active sound system and has great volume.

I personally found the bass boost to muddy the sound and would have appreciated a bass boost on a gradient scale rather than a preset. Aside from the preset EQs, the reproduction is neutral and noticeably clean.

Regarded on its merits alone, the E10 is a great value. Unfortunately, taking a comparative approach, the E10 falls far behind other amp/dac units by the same manufacturer; namely, the E7 and most drastically the E17. These are far more complete and detailed units that are completely portable.

I would recommend the E10 if you absolutely cannot get your hands on the E17 (or the slightly less impressive E7).