If a manufacturer recommends a high Q (4 cf3), what happends when a sub is in a larger box (8 cf3) with a Q of .707? Something like an RE XXX or MX 18. They recommend 4 for the MX 18, but in 7.13 cf3 it has a Q of .707.

 

Less upper bass hump, more bottom end extension, more cone excursion, same lame sealed sound...

 

What, you have an issue with sealed boxes??.....