im going to add polyfil into my subwoofer enclosure its a dual 12" box and it has 1.0cu ft. per chamber im going to be putting about 1-1.5 lbs of polyfil into it
where in the box do i have to add it top bottom sides ect. do i staple it down or what?
Just loosely fill it in the enclosure.
You should add about 0.5 lbs of polyfill per cubic foot. So each chamber should have about 0.5 cubic foot.
Good Luck!!!

Just loosely fill it in the enclosure.
You should add about 0.5 lbs of polyfill per cubic foot. So each chamber should have about 0.5 cubic foot.
Good Luck!!!
References :
MDCustomz.com