Ok just got my XBA-2's, and can now directly compare them.
Bottom line: Klipsch X-10's sound better to my ears. The sound is very natural, I have no better way to describe them. Things sound exactly like you think they should sound, but with a little more bass. Signature is very fun and engaging.
XBA-2s sound good and clear, but are very coloured, from my perspective they have a nasal sound to them, have a definitive midbass boost, highs are weird because sometimes they are there and sometimes they are not.
I'm puzzled by these, as of right now I've not heard them for more than 30 minutes, definetly have to spend more time with them to give you a more precise impression.
About the product: Bundle is ok, they come with a lot of different tips (hybrid and isolating types) and a small carrying case. Build quality feels solid I really like it, noise isolation is top notch, comfort is good and they fit securely. Cable is asymetric, I've found this convenient for IEMs as I usually use them for moving around or exercising, and find this design much more convenient; cable is flat and microphonics are virtually non-existent, good job on the cable Sony!.
Overall I'd say, soundwise, X10 gets the victors. Build quality, microphonics and isolation XBA-2s get the victors.
Got them for $135, I think it was a fair deal for a dual BA.
Edited by Elektrospeed - 11/23/12 at 10:34pm