Subs under the seat?

[zl6]

Hey
i have a ten inch sub behind my seat, but that is not enough.  Has anyone made a custom box to go under the seat to fit like 2 10's or 12's?  I'm thinking of cutting out the floorboard and welding in a new lowered one to fit a bigger box?  i am wondering if it will get anoying rattling my butt, so i was wondering if anyone has done it yet.  i don't want it to be annoying, but my girlfriend might like it.  i appreciate your help

[smokin77]

I was just thinkin the same thing last night! Right now I have a custom box behind the seat with 2 12's. I'll be upgrading the subs and amp soon, maybe a 2400W amp!

[biggen]

dont cut the floor it takes too much stengh out of the cab. try uisng fiberglass. laid down a few go laiders of masking tape on the dip in the floor under the seat. laid glass and mat intill u get about a 1/4 inch thick and then use 3/4 mdf as a the top to mount your subs  

[lotopp79]

try fittin a pair of 8s

[superman6204]

i used to have a 71..now i got a 79..but in my 71 i made  two costum boxs so i could have 2 10's under the seat, since the gas tank was behind the  seat.. i made to seperate bx's b/c of the hump in the middle