enclosure for F150. little help please

[D-train-13k]

ive got a 2000 ford f150 xlt.

i need to make a new box to fit my cabin because the old box i had in my car was in the trunk.

its a 4cube with two kenwood w3011's (12's) nothin special. but the box is way too big for my truck. so it sounds like my subs arnt even hitting. i have a sheet of plywood under the subs to give them something to load off of.

but does anyone have any ideas on a good enclosure size that will make the subs sound comparable to what they used to be.

if any questions you need to help me figure this out. lemme know. im not particularly familiar with enclosures. so any advice would be appreciated.

i looked at the specs for the sub itself and it says a 2 cube ported box is best. and when i made the old one for my car it sounded great. its aggrivating hearing it now compared to the way it used to be.

lol im sure yall would feel the same way if you had to change everything.

thanks guys

[Sanitarium]

4 cubes for a set of low to mid range 12's seems really excessive.

here's plans for 3 cubes @ 30 hz thats worked well for me for a variety of 12's.

http://www.edesignaudio.com/logos/12_dual_vented.JPG

(yes it's from eD, and yes i've checked the measurements, it checks out)

[D-train-13k]

4 cubes for a set of low to mid range 12's seems really excessive.

here's plans for 3 cubes @ 30 hz thats worked well for me for a variety of 12's.

http://www.edesignaudio.com/logos/12_dual_vented.JPG

(yes it's from eD, and yes i've checked the measurements, it checks out)

alright. thanks. is there anything else id have to do ? cause im not taking the back seats out so there isnt really anything to load off of.

youll have to humor me if i sound retarded with some of the questions i ask. cause i think enclosures are the more complicated section of soundsystems..

[loganberry]

id do 2.8-3 cubes for both the subs with a 35hz tuning, subs forward port up

[loganberry]

just read your not taking the backseats out, your stuck with a box on the seats, or a sealed downfire under the seats

[D-train-13k]

just read your not taking the backseats out, your stuck with a box on the seats, or a sealed downfire under the seats

yeah box on the seats. and i cant downfire cause the subs are too tall.. they wont fit underneath lol.

seems like the trucks working against me.

[loganberry]

the truck is ALWAYS going to be working against you, trust me lol

i still say subs forward port up

[abervintageman42]

3 cubes 35hz tuning, subs forward port side firing is what i would do

[D-train-13k]

the truck is ALWAYS going to be working against you, trust me lol

i still say subs forward port up

so the subs should face the front seats and point the port to the ceiling. how does it load offf of anything? or is it the ports that load and not the subs?

[t-money]

id do 2.8-3 cubes for both the subs with a 35hz tuning, subs forward port up

x2 those subs dont need much at all