thoe's BALLISTIC CAR AUDIO sub's are rubbish! they make mutant look good!
mutant/Edge/fury/ballistic/fli avoid at all costs..
Jbl/vibe/pro plus/spl-x/sony all there budget gear is great and wont blow up the first time you use it... i have owned and used and abused all these makes and i would buy them with out a doubt for a budget system.
hard to beat a pair of 18's pounding away
http://www.youtube.com/watch?v=CkQ5sU40mLA