hey ziggyziggy what's up.
u need a build a box eh? well let me know what speaker u get & i'll run it thru my box program (& anyone else), i can design anything w/ this baby, that & i am a computer drafter this helps quite a bit when building. to find the volume of a box it's as simple as: (in inches) base X the height X the depth, then divide that # by 1728. this represents the cubic feet of air space. of course u need to take in account for the thickness of the wood, most use 3/4" since it's pretty strong & available. u can shrink the size of the box a bit & include some polyfill because it slows down the sound waves & makes the speaker "think" it's in a larger enclousure. shrinking the box will usuall allow for a tighter sound & higher wattage handling & a larger box will produce lower ( & looser) bass w/ less power handeling. ported boxes are alright, but sealed are usually far more accurate. hope this helps, but if anyone needs i can run my program for them no problem :thumbup: