Well i got to make my final decision VERY SOON!!! But i am stuck between 2 DC XL 18's and 4 DC LVL 2 15's(which can be made to handle 600 watts each.) I have around 4800wrms but i would like to get the "Higher End" model rather than the lower end model. The thing that is f**king with my head is the cone area.
Two 18's = 508.94 sq in of cone area
Four 15's = 706.86 sq in of cone area
So like the title, how big of a low end(32-20Hz) difference or gain does it make?