Hey guys, I might start screwin around with building custom sub boxes and stuff in my spare time. I was going to start by possibly getting 1 CVR15 or 12 from Circuit City (I work there) and build a box for it that is ported and pump my Kicker 450.2 amplifier to it. Just to see if box building is something I could do. Could I get that 1 sub to get REAL loud if I build the box right? And would people be interested in buying some if I can do a good job of it?