If you read through this thread in its entirety--and I know it is on a Tolstoy-ian rate of expansion--you will see discussion about the apparently contradictory early reports on the Mikros 90.
We have narrowed it down to:
(a) improper headphone placement
(b) poor recordings/sources
(c) ambient noise about the audition kiosks.
In that order.
Unfortunate, because it gave most people the erroneous initial impression that the MLs weren't worth it. Look at craigsters post on this thread. His was indicative of the "early bad press" about the Mikros 90.
Anyone who has spent any serious, extended amount of time with the Mikros 90--even DoctorJazz--cannot say that the MLs are "bass-light". After the bass mod, these can crush you in the low end. Ask Maxx or Lors.
They are also very revealing of ANYTHING upstream...
And, even before a mod, stock! I have always felt from the very first listen that the Mikros 90 has a crap ton of bass. I can't fathom how they're considered by some as bass light unless the pads don't sit correctly on their particular ear shape no matter how they situate the cups, and therefore maybe it's impossible for those people to get the best coupling with the ears...