So I bought a second-hand pair and received the FA-4E on Monday. I've been listening, tip rolling, and getting used to them for a couple days now. Immediately I removed the stock cord and installed a BTG copper cable. That made a nice difference. Early on I am enjoying them a lot more than I expected, considering their price compared to my current favorite, the TG334.
Rather than write up something coherent, I think I'll just list some of my early observations, bullet point style.
> Immediately struck by how clear and transparent the FA4E is.
> Bass is quite good (I always require an authoritative, weighty bass in my earphones), right on par with the TG334 but with a less mid-bassy quality.
> Treble is very detailed and extended, without having painful bite. Definitely more extension and shimmer than Fitear.
> Midrange seems somewhat drier, and ever so slightly more recessed than on the TG334, but seemingly equally resolving.
> Soundstage is impressive, perhaps a touch wider than the TG334.
> This is easily the most comfortable earphone I have ever worn (as so many users are noting too).
Overall, I'm really taken by surprise how much I like this earphone. I hoped it would be a decent alternative (or different flavor) for a little bit of non-334 listening time, but the sound is just so damn good that I'm going to this earphone a lot more than the TG334. The clarity and resolution are pretty remarkable.