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...

The BL is fine on the low end, who ever told you that either has no idea, or did a bad install. If you are going for output, all things being equal, the pair of BLs should have more then the BTL.

The BLs are great on the low end. Whoever said otherwise must've either had install problems, or heard a setup with install problems. All things equal the BLs should be a bit louder and save you some major electrical upgrades. Or you could give your BTL more power and do some overhauling on your charging system...