the plan as it stands is to run 4 dc lvl 4 18's. allready ordered on of the 18s. now i'm at the point wheir i'm ready to make another order but realy like the idea of more cone area. so i'm intertainning the idea of 8 lvl 3 15s ported or seal , wall or no wall. so help out on what type of box would beat hardest for the 15s?
my van build