Ok, Im changing my mind again on setups. I already have an 18" Fully Loaded BTL, Im thinking about going with 2 15" BL's now, no options and selling the BTL. Im seeing that I can use 2 15" BL's in the same size box and use the same power as the 18" BTL would use. I will be feeding either setup about 2000watts. What should I expect in differance? I hear the BL suck on lowend, that true? THANKS 1 18" BTL Fully Loaded with 2000watts in a 7cf@32hz box OR 2 15" BL's, no options with 2000watts the pair in 7cf@32hz box Thanks in advance...