I am ready to build a sealed box for my single ss rl-p 18, but im not sure which way to face the sub. i have plenty of room on all side. My car is a lincoln towncar if that helps.

Also, should i go with the recomended box size of 4 cubes?

And one more question, should i only double baffle the front, or should i double baffle everything? Thanks

usually facing the back works best for a trunk

bracing will probably be a more effective use of wood than doubling up the entire enclosure

How should i brace it?

Is there any other input before i start building it?

i would personally just use wooden dowels spanning the inside of the box. You could also use 45's in the corners or make window frame bracing.

thanks. ill probably do the dowel and 45 idea. thanks for the help.