im planning on taking a 14 inch mtx car subwoofer and building a box to put it in, and then wire it into my centre speaker. i alreadt have a 10 inch out of my receivers line level otuput.

how do i find out what shape and what size of a box sounds good? is there any good site out there?

and is running it through my centre speaker the best? i thought it would be. or would one of the front left, right channels be better?

i dotn have the exact dimensions of the woofer right now but i ll post them in a bit. just any basic help would be apreciated thanks.