Finally decided to put a system in my truck but I can't decide on 2 BTL's or d SSD 18s, either with all options of course. Will be using them in my DD but still looking for the better spl and not as worried about sq. I mostly listen to rap but also listen to every other kind of music too. They will be going into a Yukon xl so space isn't a problem. Will probably be running off on 2 saz1500d's or maybe just one saz3500d, not sure on that one yet. Opinions?