Summary: I'm shocked. As an advocate of Sony headphones over many years, I looked forward to testing out these premium price 'phones. On doing so however, I immediately re-packaged them and sent them straight back. The bass is there, but nothing notable. The treble is muted and the mid range shouts at you. Although there seems to be detail there, the balance is so harsh they're unlistenable.
Summary: For the price, the sound quality was not at all very good. Couldn't notice much difference to my standard in ear apple headphones. Then the ear piece which holds the ear buds snaps off a few days after my warranty runs out. Very disappointed.
Summary: The sound quality was not what I expected at all. Given these were originally priced around £130 I expected much better performance. I have a set of apple headphones that came with my i-pod and they produce a markedly better sound, although are not "in-ear" headphones, which is what I was after. I returned the XBA2's to Amazon.
Summary: The product is well made to a good quality and fits the ear ok after trying out the various earbuds, but the quality of the sound seems to me to be no better than the standard ear phones that come with a Apple product being rather bland and nothing exciting.