I take back what I said about no driver flex with my FXT90's as I do have a it happen only on the left ear piece and only when I insert them but it doesn't always do it. They still sound great, I haven't heard any popping or crackling so it hasn't hurt the performance at all.
Man I love the way these sound even more than my beloved TF10's and thats hard to do if you knew how much I like my 10's. They just sound more open and I'm really surprised how good the depth and separation are on them.
Edited by jiff - 1/9/12 at 3:34pm