I decided that the box i have is bigger then i would like it to be, so i am going to build one, about 2.0 cf. i have 2 infinitys kappa 12's dvcs. i am powering them with a hifonics brutus 1500d. I would like to build the box so the subs are firing upwards towards the deck of the car. now if i do this should i fire them stright up, or should i position them so they are firing towards a ceratin corner or spot in the trunk? i have seen some installs where the subs fire stright up, and some where the subs are angled so they are firing towards a corner. what is the differnce in sound going to be? any other sugestions?