Originally Posted by nothinbutaford

While I typically try to place the sub as far away as possible(pass corner) having the sub inverted does look great and can certainly show off the sub if it's worthy. I did that when I built the interior for my brotherinlaws truck. The sub doesn't know if its playing either direction and the bass output is nearly identical. One advantage you have is you can build a smaller box than the sub will actually fit into or mold it into odd shapes for mounting. There is a picture of the sub sticking out between the seats in my install gallery and there is a better view of the whole box on boston acoustics website here http://www.bostonacoustics.com/car/pdf/S10.pdf You will also have room to mount the amps to the back wall behind each seat. There are alot of pros and cons to each design it just depends on what you want

Originally Posted by nothinbutaford

sorry for the misunderstanding and thanks for the comp. After you install the sub make sure you try it wired both normal and out of phase (swap the pos and neg wires on the sub) especially if you mount it downfiring. Sometimes playing the sub out of phase will give you better bass response, and it won't hurt the sub or the amp whatsoever. It has no idea if its wired either way.