Thanks for the comparisons and initial impressions. Not a "WOW" sounding iem then? Will burn in really have the much of a significant effect? I heard the Senhheiser IE8 changes quite a bit with burn in, but there aren't many "audiophile" review of this Sony xb90ex model.
If its your first set of Extra bass ear phones, you will certainly say WOW when you first use them, I am using the Digizoid zo2 Amp with them, Bass sounds great, sound quality is good too, just not a massive step up from my XB41's, but i guess once they have burnt in i'll be able to comment on the differences.
If you are looking for excellent sound/clarity and aren't too bothered about bass then i'd say look at the XBA 3/4.
Also anyone know if the XB90's are not meant for the UK? I'm trying to register these but they don't show up when I manually try to find them or if i enter in the model number.
Edited by zaim - 3/20/13 at 6:20am