Got these yesterday (3 days from germany to UK) from the site ulyses posted. Done some quick a/b'ing with x10's, soundmagic pl30 which I'm pretty sure are a rebadged nuforce-ne8 which is also a rebadged dbe hf30 and for fun, shure se110's!
Would definitely put them above all three earphones atleast to my own preferences. The one thing I always look out for is sibilance in earphones and with T100's I detect none unlike x10. No sizzly upper mids like the nuforce either. Mids are definitelty the strong point of these, very natural and not at all coloured like x10's.
Bass, I think extends even deeper than x10's which I thought was not possible, with less midbass bloat and with equal punch and somehow mimics the texture of a dynamic phone (quite simlar to pl30's but gains much lower extension) so I'm actually pretty impressed. I suppose the wide soundtage helps in this as the bass feels as if there is enough air displacement and little constriction as with some armatures.
Highs are not that forward and are not as blaring as the x10's though it is all there.
Soundstage like dfkt stated in review is planar (unlike x10) but wider. I prefer the x10 soundstage even though its physically smaller as the instrument placement within has more definition and is very 3d in presentation.
overall though, I'm liking the phonaks very much. I don;t find it as analytical as others have mentioned with the black filters and comply t100's as it is still quite warm and while more detailed than the other earphones, it is more balanced so it is harder to observe. It seems also very laid back like a dynamic phone, certainly not even close to the very much 'electrifying' x10's! I suppose some might find it boring but I think the balance of this is perfect for smooth easy listening.
Isolation is about 90% or so of X10's but it appears worse because these are hard to drive. My samsung t9 and sony s706 both struggled to pump out sufficient vol. If your collection is normalized at anything below 92db I would suggest either an amp or increasing the gain!
On a sidenote, I was going to get the IE8's as they're cheap here and to see what all the fuss is about I honestly can't imagine them being any better than the phonaks unless you really are bona fide basshead. W3's are out of contention as they are simply too expensive and if they have similar sibilance to the x10's then it is too much for me!