This is a cheap setup that I am about to buy for a third car that I drive a thousand miles a week. I am going to get the crystal csc's 6 1/2's powered by a phoenix gold amp. And another phoenix gold amp prob. a 600 or 800 to power 2 12"fi x's. I just can't decide if I should get the 2 12 fi x's or 1 15" fi ssd. I listen to rock music if that helps. They would be about the same price and take the same total power. I just can't decide if I want 2 12's or 1 15. Anybody have a suggestion.