Im gonna do a ported cut cab on my 01 gmc sierra 12 swr-12d4 type r 3000w max 600w rms dual coil 4 ohms and 15 swr-154d 2000w 750 rms dual coil 4 ohms and i want to know which one will make cars shake and wake up a neighborhood each 12 is 2.0 cubic feet max and the 15 is 2.9 max and i want to know how big the box needs to be but if anybody can tell me how big in feet or inches im not familiar in cubic feet and wat amp will be better im planning on getting power acoustik 6000 monoblock or does anybody recommend me a better amp