I'm building my buddy with a TJ a box tomorrow and am trying to look for some good deals on subs tonight. I think I will make a box that is down-firing. The box will go in the trunk/back of his jeep behind the back seats and I know that it is not a large space. So my question was, will a 12 fit? Or will I have to resort to a 10? Thanks jeepers
Pick the sub and then make the box to the proper size. Will a 12" fit, yes but what will it sound like? Any good speaker manufacturer will give you sealed or ported box sizes for their speakers. If you cannot hit that size then reduce the sub size. Keeping the back seat in you will be lucky to get 1.25 cubic feet and will be too small of a space for a 12".
2000 Sahara, 3.5" Rubicon Express Lift, 1" spring spacer & 1" Body Lift, 33" or 35" BFG Mud tires, Front & Rear ARB, Rancho 9000 shocks, UCF Ultra High Belly Up
Thanks dudes. My bud decided to mount the sub a different way so a 12 will fit with ease. I know box specs and tuning are crucial, with that said we build the box the way he wanted it. The box has a just under 1.2 cubes. We built it to fit right in between the hinges and handle things that protrude.