You should read this article on subwoofer myths before proceeding. There are many discussions on many audio forums discussing the "musicality" of subwoofers especially those of a smaller driver being "faster" and "tighter" and larger drivers being more "sloppy" and "flabby". This article will explain many of these misconceptions.
The sections titled #3 Subwoofers are fast / slow, #4 Ported boxes don’t sound as good as sealed, #5 Subwoofers care what they play, #8 Smaller drivers sound better than bigger drivers you might find very informative.
http://www.audiopulse.com/know-how/subwoofer-driver-guide/myths-about-subwoofers/
