oooh ok thanks, i sold my memphis prd1000 and solo-baric 12's, and i already have 1 kicker zx2500 amp, and planning on geting another, and get the 2 hdc315's with options, and put back seat down and build a good custom box
yeah definately bro it will kill ur old setup. i have a HDC315 running off a zx1000.1 and that sh!t is loud enuff for me. i also drive with my seats down too it makes a difference. I think ur be fine just runnin the 1 zx2500 on two HDC315. lol goodluck.
save some money and get two sd 2.5's instead but 15's might not fit right so you might wanna go with 12's they will sound better than the hdc3's and get plenty loud on 1200 rms for the pair...get an amp that does a little more power (1500 rms) but set them up for 1200 rms daily