I have been asked to help a friend fit a 12 inch sub into an old style VW beetle he has been doing up.
There is not a lot of room behind the seat where he wants it, i am also restricted to keeping the enclosure at or below seat-back level.
I am wondering what the pros and cons of facing the sub downwards would be?
The following is not the actual enclosure just a diagram to help explain.

The sides of the enclosure will extend to the floor but the front and rear will not. I guess it will be a bit like a home theatre downfiring sub.
Any info would be greatly appreciated
Gary