Sound is clean but colored.

Overpriced, design stuff, the most people will think at first looking at these small high-end mobile speakers. Not at all, these sounds better then my Triangle-Yamaha hifi which is twice the Focal's price used. This is a good entry level audiophile system for computer (or iPod) use. 
The computer and iPod will use their built in DAC. I compared this with B&W MM-1, Audioengine A2, A5, in detail, power, soundstage, musicality won above all.
 
I even had the opportunity to compare these Focals with a [size=small]$[/size]10.000 custom hi-fi system, and with a high-end Goodmans system, of course those sounded better in every way but..  the Focal's sound were closer then i'd belive (compared to the price difference).

Personally i prefer this design over the HD600

I liked them much with instrumental music or whatever that does not require a large soundstage.
Others mentioned that it has a large soundstage for an IEM, i agree. It doesn't have the crisp, lively sound my most of music requires so i sold them.

It doesn't really need amp, but it benefits from them. My ears got tired of listening to them.

These were my sweetest sounding head-gear yet. It would be brilliant all-rounder if it would not require a portable amp for portable use. This is the first reason i left it, otherwise i almost got an ear infection from those foams.., they get dirty in a few weeks of massive use. I recommend them to clean, i boiled them in water.

I had it for a week then sent back, i didn't like the slow and unrealistic presentation.
Rolled off treble made it sound like a tetris with electronic music. It was an acceptable performance
for most of genres, exceptionally good with instrumental music. Very comfortable and it has never been harsh.