Box is 12 cubes net, 32Hz and 156^2 or port. NOT big enough for 4 15's, so either add more power or have me build a bigger one that'll do 4 subs justice.
Remember how your 2 L7's sounded in the undersized pre fab, adding a 4th to this box will pretty much do the same thing.
Box would need to be 22 3/4" tall to get 16 cubes net and right amount of port area. Same width and depth as you have now...
Remember how your 2 L7's sounded in the undersized pre fab, adding a 4th to this box will pretty much do the same thing.
Box would need to be 22 3/4" tall to get 16 cubes net and right amount of port area. Same width and depth as you have now...