If you are really looking to change the sound, I wouldn't be aftraid to look for a different crossover. You should get pretty drastic results with a new one.
speaker redesign
for a school project, i'm redesigning the cabinet for my speakers at home. by opening up the existing speaker i found the whole design to be fairly low grade. as of right now the speaker placement consists of the bass woofer at the bottom, with the mid range and tweeter side by side above the woofer. if i were to reorient them so that they a place upwards in progression (woofer bottom, mid middle, and tweeter top) will that affect the sound at all?