I calculated it from bass box pro. different programs give slightly different values. go with my values. the ones on 12 volts dont take into consideration some other things thats why the sizes might be different
yaar waisay u are getting too much confused. go to ANY wood worker, furniture wala, TARKHAAN etc and ask him to make you a box made of LASANI wood of PAUNI ki thickness. Lasani is VERY common wood type. ask him to use SCREWS. Dont use nails. once the box is made, u can either use silicon to seal the inner edges and joints or you can mix sawdust with white glue and use that. or you can simply wait for my post which i am going to be uploading soon.