For how long did you try it out?Yeah I talked about this earlier in this thread, I had the same experience as this guy who bought it from me and severel others, and nomatter what I did in the EQ I could not fix the problem. Kind of sad, because I went on a $230 dollar loss after trusting the objective measurments that was provided here. Bass is important to me and I could never imaginge a closed back planar that measured like this could ever give me problems with bass levels that would not be fixable with eq.. This is why some form of proper leakage effect testing matters. It's too relevant to leave out.
I had the same issue the fist ... week(s). I think the pads needed to settle. It took much longer than I expected. But now I never (except when having a ear-infection) have the impression there's anything wrong with the bass. There's enough and it sounds fine. (with or without EQ)