on re's website it says that i should build a 3.5 cu. ft. box. ported tuned to 32 hz for an re sx 15. are these good box dimensions? also i no nothing about ports, tuning, or building a box. could sum1 plz giv me a blueprint of the box layout with EXACT dimensions of everything. my dad's gonna start building the box. also, wut type of wood do i use? 3/4" plywood? or what? any help will b appreciated.