Hey, im gonna build a box for my temporary sub (dont laugh when i say what im gonna use). im gonna be using this for a few months till i get the dough for my tempests and amp ect. i have (2) sony xplod 10" car subwoofers, the new P5 ones that are pentagons, i want a box that will house both woofers, ported. tuned to maybe 28hz and a slot port rather than a round one would be much more convenient, size is also not an issue they can be as big as needed, its for music only so i dont need super deep tuning. the boxes i have them in now are tuned to 52hz.. ugly ugly ugly, there spl boxes my friend had and their horrible, port noise, high tunning and poor construction. i have 320 watts to push them with for now. im wondering if anyone can give me some help, itd be much apreciated as i need to make a decent box for them so i can be somewhat happy for a few months till i get the tempest. and the box building experience will come in handy. thanks alot.