I'm still in the process of getting used to the Triple.fi 10s... I'd heard they required 20-ish hours of break-in, and I've only had them for 3 days, so I'm still in the process. I've been alternating between listening to them myself and using a program I wrote which hits them with a combination of white noise and a sliding frequency scale at ~60% full volume.
My impression thus far has been pretty positive, with two complaints. 1) they don't sound very good at low volumes, unlike my ER-4P phones (which sound the same all the way down to 0 volume on my 5G iPod), and 2) the sound isolation is nowhere near as good as the Etymotics.
On the other hand, the bass is beautiful without being too bloated, and the highs are very sharp. Instrument separation is really good. There may still be a slight dip in the mids, but I've heard that that goes away with use. I'll do a full test evaluation at the end of this weekend, after they're out of any possible burn-in stage.
