box for 15" fi BL

[clubcar13]

Hello,

i was wondering if a 3.5 cube ported box or a 5 cube ported box at 32 hz would be better for my 15" fi BL. Also, does anyone have plans or should i just buy them from fisher customs?

thanks

[treadburner]

http://img35.imageshack.us/i/5cubes32hz62sqin6hk.png/