Hey, im think about buying two 12 inch kicker L7 2 ohm subs and am curious if my current amp (RF 1001bd) will give them enough power to really sound good. The amp will be giving the subs 500 watts each. Also how many dB's can i expect from ported box that is 3.25 cubic feet in each chamber with a slot port that is 3x13.25 in. and 14.5 inches long (kicker recomindation for deep bass and spl)? also how many dB's from the 2.5 cubic foot boc with 2.5x 13.25 inch port that is 16.5 inches long?