Re: how much polyfil is enough?
Not gonna happen. it might cover for .1 to .2 cubic feet max but not .4. Your going to need a lot more and you'll be introducing a lot of heat if you over stuff it.
Clip city b1tch, clip clip city b1tch. 10's, 12's, 15's, goin up in flames b1tch.
Subs : C2 threatcons
Sub amp: hifonics brx 2400.1D x 2
Mids/Highs: PPI Phantom 900.4 - bought from dragnix
Headunit: Pioneer 80PRS
Front stage: Massive Audio CKX 6x9 components with jbl ms62C for rear fill (Its a van, I need rear fill) db drive Pro 6.5s comming soon
320 amp Singer alt comming soon. Just a group 31 deka in the back atm with big 3 finished.