From: FI IB3 no cu. feet for ported?????

[Adrian_D 520]

Well that makes me look smart. I shoulda said that xmax is not that important when the driver is ported and going for spl but more xmax in a sealed application would help or better yet i should just zip tie my fingers and quit typing before i make i make myself look even smarter.

Why do you personally think x-max is so important in a sealed enclosure application?

Because in the case of sealed and IB applications the more displacement you have the more output you have.