right now I have a alpine type S 12 running off a RF bd1000p in a sealed box about 1.6 cubic feet I was wondering would a single se12 hit harder than the alpine and would the box have to be smaller than that or could I put it in the same box I am willing to build another box if I have to? I like the way the alpine sounds but I would like it to hit harder and I don't want to spend more than 250 please help