Okay well my goal is to get at least 150db on music do y'all think it's do able with the 4 sa-12's on the saz-2500 or would it be better to do it with 2 15's or the 1 18 of the saz-2500? I don't think I can fit 3 sa-15's because my width is 33 and my depth is 26 and they don't look like they will fit in my dimensions.