Alright so the subs i have a pair of Audiobahn ALUM10 Q in a sealed box,and im looking for some subs that are louder and can go lower..Now the new ones im thinking of were a pair of Kicker CVX 15's, Alpine Type R 15's, or a pair of Soundstream T5 15's... now will all of these get louder and lower then what i have? Also im going to put the new subs in a ported box i think. Let Me Know What You Guys Think.