I saw this earlier today. I wish I was building my IB now instead of when Ascendant was blowing out their Atlas 15's. Apparently it is a batch of drivers that was slightly off spec. The suspension is a little stiffer than spec. I would scarf up a few of these right now if I didn't still have 4 extra Atlas 15's in boxes still stacked up in my bedroom.

http://www.diycable.com/main/product_info.php?products_id=652&Cid=60fef5b8bb096ce4651b3261e84cd1f7

http://www.audiocircle.com/circles/index.php?topic=43131.0

Harold