As has been mentioned a few times elsewhere, it seems that the new drivers with higher excursions are having to sacrifice sensitivity to deliver. Honestly, that is the only reason why I passed on the AV12. But, why is it the AV15 is able to maintain good sensitivity? (I also passed on the AV12 because I'm hoping to find room for the AV15.) It seems to be just like a Tempest, and with significantly more excursion. Is there a chance that the final design will end up losing a bit? I know there are many more benefits to these drivers, but as a 'common plate amp' user, I'm trying to get the best bang for my buck. As a few others have said, it's a tougher sell when getting the most out of these drivers requires more money and/or componentry. Not everyone likes the 'smaller box/bigger amp' combo.