Can't seem to find any info on what people are finding to be optimal for the new DP 15's. I will be running one off of 1500 W and listening to mostly rap. Figuring 4 cubes after all displacements tuned to 32 hz. How much port area should I use? (3) 4" aeros (2) 6" aeros (1) 50 sq. inch normal slot port Thanks for any insite.