Sepinho gave me his FA-3E after the meet so I could listen to them for another day because I was already so amazed on my way to the meet and didn't even try any other IEM until we got there.
Background: I was A/B comparing UE900 and Heir 4.Ai for a few days in a row and trying to figure out which of the two sounds more neutral? Is the UE900 too warm or is the 4.Ai too bright?
And then the FA-3E hit me. Maybe my ears were already exhausted with neutral IEMs, but this one just hit the spot. I was trying to figure out what flaws it has and I couldn't find any - that at a considerably lower price than both, the UE and Heir. I'd say it is extremely uncolored with the best timbre I've heard from a BA yet.
On the second day, I *think* to have found following "flaws": kick-bass is slightly elevated, as is the presence peak. I will consider both flaws a plus, personally. It adds a tiny bit musicality but it is really hard to find because of the good timbre. I'm guessing nobody will ever notice unless he's heard more neutral 'phones.
Resolution is not 100% on par with UE900 and 4.Ai but it's pretty close. There seems to be a slight roll-off in the very high frequencies but I haven't heard anybody confirm it yet.
All in all, it's a very neutral earphone that secretly adds some drive to the music. Extremely recommended for transparency and Rock fans.