Ok guy i need some input, im going to be running a LVL 4xl 18 in my 2008 HYUNDAI ACCENT hatchback and want to know what config you would use on the box subs up port back or what?Also how many cubes should the box be 8-10 i want this box to play low but not to low, ie (GROUND POUNDER) My main goal is for the box to reek havoc on my car.

for music i find subs forward, port up towards the back hatch works quite well.. i can't say how it will perform on a meter in your car though, only testing will tell in that case..

i'd stick to 8 cubes tuned 32 - 35Hz depending on your taste..

haha, that is gonna shred ur car