Some of the posts recently in this and other threads remind me that:
* Everyone's ears are physically different, so that comfortable for one person is not for another person, and bright for one person is not for another person (just differences in ear shape can cause differences in frequency response from person to person).
* I really think that a number of people do not have various headphones positioned on their head in a way that is best for the sound of the headphones. I remember that in one case, someone called Dan (Mad Dog headphones) and on the phone, he had them change the position to one that correctly produced satisfying bass. I expect this happens with other headphones. (I hope everyone has noticed the L and R marks on the MA900 !)