Ok, I have been pi\king up stuff here and there for my build. so far i have two re sxx 15, one re xxx 12, brutus elite bre2000.1d. i plan to get the xtx5000.1 for the fifteens. my question is can i run the xxx 12 and the sxx's in the same vehicle? i have done some searching and im thinking not but i was just making sure i can not do this and make it sound right. i know for sure they would be in seperate chambers, seperate amps could even point them in opposite directions if that would make a difference. like say if i point the sxxs to the rear and the xxx to the front of the vehicle? would that make a difference. If i do have to run the same should i go with four sxx 15s or two xxx12s ?