if you are referring to my post over on ca.com...apples to oranges=sealed vs. ported i agree, but he had them sealed and its not loud enough for him. Funny thing is, my two 15's sealed off a zx1500.1 gets loud as fvck. I've heard a solo x off 3000 watts, i've heard two jugg 15's off 3000 watts and i still beleive my chit is loud.I sat in a car that hit 148 off a tl and to the ear it didnt seem much louder than me if any.to each his won i guess My car is very loud, but i really want louder. Those setups you mentioned are mostly install dependant, nothing really to do with my 81 Cutlass. Plus you and me.....two different people, so you can't really say that MY car is already loud enough, because right now its loud enough. As far as 12" mags go....i wish i could find 2 BNIB 12"s like i found these 15"s BNIB. I've been looking for over 6 months