ok i got my sc300 and am contemplating either replacing the free air sub or getting a nice enclosure with some 12's. I wanna ask you guys your thoughts, i really dont need the trunk space but i was thinking it probally would cost me more to get enclosure since I would have to dampen the trunk and all, what do you guys think is the best way to go? for you guys that have replaced the free air sub hows the sound quality? for those of you with enclosures do the sc's rattle lots? any info you guys would be able to provide would be greatly appreciated, thanks in andvance