well zane i have been to ur cite and im impressed with all the programs u offer, but theres so many to choose and i dont know which is good, i hope u can help me, i want to construct a sealed box or ported for 12 inch subs, wut program on ur cite would u recomend me using to make my box, also wut materials could i use and wut do i use for the ports. well get back to me soon thanks .