I have a box that a friend of mine made when he owned my subs and it is made to the optimum specs of the subs. When I got a civic awhile back the box was too big for the trunk so I had to get a "one size fits all" box. It sounded good. Maybe didn't hit as low. Should I keep the subs in the smaller box or run the bigger box? Or does anyone know where to get a cheap db meter so I can see which is louder? Thanks in advance.