Im going to run a taramps bass 3k at .5 ohms 3200 watts. I want to get the most full bass range i can get. I can run 8 8's firing forward and i tend to get 2 db more that way vs firing up but firing up i can run four 15's what combonation would you run on that kind of power and what brand? 600 - 700 bucks preferably the price limit. I do have two dual 2 sql 12's too and was thinking i could run 4 at 30 hz in a 6 cubic foot box.