OK. Well I'll stick with my amp, maybe I'll get different subs someday. Problem in my car is space.. I have about 2cuft to work with.. a monster 12 would work, or 2 sealed 10s..
Also, after I added this battery.. my resting voltage with the car off only went up to 12.4 from 12.3. That sound right? Battery was only at 12.6 or so when I measured it.