Re audio SXx 12" 1000W rms 4 ohm dvc
so i went on the website for the subs and found the box should be tuned to 33hz which i have no idea how to do (problem 1). the optimal space is 2.0 ft^3 per chamber. is that before or after displacement of the sub? (problem 2) the rough dimensions that i got for the box are 31.75W x 20H x 11.75 D. that was with a "golden rule tool". is there some calculator or something that can build me a virtual box? i know i need a spec box for these subs but it's a little over my head, any feedback or comments would be greatly appreciated.