ok here's another thing im considering and need help with, i found 15" kicker cvr's for 98.00 american, now what if i did 4 of these?......so 4 15" cvr's vs 3 12" L5'S or 2 15" L5'S.....yeah i know the cvr are only 500rms each but with my amp doing 2000rms i could run 4 of those 15's.....what...