I've been googling around on this subject, but maybe I'm asking the wrong
question... I was driving for a couple hours today in my car. I have a 02
WRX w/ a "premium soundsystem" which includes an 8" subwoofer. Its
definitely cute. hehe. But since acquiring this vehicle, I've made some
audio upgrades and I'm looking at putting subs in it. I listened to a few
different types of music through my current system and I asked myself, are
there different kinds of bass?

I listened to some GnR and some Metallica, where the kickdrum has been very
punchy in other systems, but not so much in mine, but I also listened to
some rap/techno, where the bass sounded better. Does the percussive nature
of a real acoustic kickdrum sound different from a more synthesized "note"
of rap & techno? Would my small sub in a sealed box make the rap and techno
sound louder? would a larger driver and/or ported sub make a difference?

I currently have 2 12" Eminence Kappa Pro drivers and I'm designing the
subbox using the Eminence speaker designer software. I know the difference
in response between the two types of enclosures, but I don't know how that
translates to what I hear.

Any comments on the different kinds of bass? Thanks!