I do find them to be veiled on occasion. Cymbal hits seem to disappear sometimes. Not a deal breaker to me as I love their overall sound!
I agree it sometimes happens, from my experience the reason for that is not a perfect fit. Small bass bore push not too much air, so if air don't go directly to our eardrum, it can lost in half on its way... Describing visually what I want to say:
So, they are every fit depended IEM. I strongly recommend try to fit them with open mouth or with same technique as you do with canal phones
If it doesn't help, try
SpintFit tips
From my experience here is how they sound with different fit:
Not enough isolation (Small Tips): no bass, thin and cheap sound.
Average isolation with slightly more deeper insert (Medium Tips, tips slightly pass or stays on first ear channel bend): good sub bass impact with good articulation, average mid bass impact, vocal is behind of scene, highs a little harsh, good instrument separation, but layering is a little too distant.
Good isolation but not to deep (Large tips): No sub-bass impact at all, mid bass sometimes lose, sound more like "mid-forward" and highs can be sometimes sibilant. Overall, sound is not balanced.
Good isolation with slightly more deeper insert (Large tips, tips slightly pass or stays on first ear channel bend): Good mid-bass and sub-bass impact, bass quantity is not big, but not neutral either, with good articulation (when it should be). Vocal is sweet and intimidate, highs are neutral, for someone highs could be a little on darker side, good instrument separation. Overall, thick, coherent sound with "stage" signature.
PS. I use my UE900 with FiiO cable, so your experience can be a little different from my. Since, FiiO cable makes UE900 a slightly V-shaped, adding just a little more low bass and treble, and makes them just a little less smoother and more faster.
I just got the ue 900s and like them so far. Sounds so much clearer than those sony iem I was using.
Which eartips do you guys use with them? I tried them right away with sony hybrids, which I've been using with all my iems since I got the TF10.
Personally, I don't like sony hybrids tips in term of SQ they are too blurry (smoothed), highs is rolloff and too much mid-bass. Sony hybrids tips good for low-mid-fi earphones like Vsonic VSD3, but with mid-high-fi earphones, you will sacrifice with performance. With UE900 I like original tips more than any other.
PS. Sorry guys for my english skills.