Originally posted by A_D
because if you're off by a half inch or so, guess what? you're volumes for each chamber are going to be different.
If you can't put a divider in the middle of the box, then you shouldn't be building boxes - off by 1/2" - I can eyeball that kind of measurement...
While manufacturer's specs are not the law, generally, they provide good all around performance for most users.
True SPL boxes are one note wonders and are worthless for playing that stuff called music...