booyah

Hello there world, I have been rather serious about sound systems for awhile now, and I have recently purchased 4 T212d4 Subwoofers as well as 2 T2001BD amps, I need a box to hold these bad boys, Size isn't really a problem, I was planning on removing the backseat of my Extended cab Chev. I don't have these subs yet and I dont know how much volume I will need.. I don't know much really.. I could pay someone to make me a box but I would rather do it myself. If any of you would be nice enough to assist me with this, I would appreciate it. Im assuming just building one large box would be best.. but I don't know about ports.. if anyone could help me.. possibly give me a diagram.. Thanks guys.. I will be sure to give you some pictures of my setup soon!

Chris_Palmer

Hey man hope this helps you out if you need anything else let me no...

Specs for a box that is tuned to 33hrz at 8.7 cubic feet
box dimensions are 40x30x20 inches,width,hight,depth....
minumum for subs are 6 cubic feet maximum is 10 cubic feet...

bottom plate 40x20 inches
top plate 40x20 inches
left plate 19x28x19x28 inches
right plate 18x28x18x28 inches
back plate 40x28 inches
front plate 34x28 inches
port l1 13x28x13x28
port l2 6x28

CanadianBronco

just took my back seat out tonight measured up, with some space around each end I had an area of 59 long 22 deep and 22 high ( only as high up to the seat) came out to 13.5 cubes of room for a max size I would use, not saying my box will be that big.

i also have a 93 EXT.

booyah

Thanks alot for the advice.. Im somewhat unsure how you guys came to your calculations.. I get a dif ammount of cubic feet than you guys. For this box I get 13.27 cubic feet. Then I need to factor in sub volume which is .93^ft. Then how ever much my port will displace. Will a port like the one in my picture work? Thanks again guys, so far I have 2 subs and 1 amp. Still waitin on the other half.

booyah

Ok I have been doing alot of research, and I have come up with a box. I used WinISD to get port length. I am getting the rest of my subs tomorrow and I want to get this box built but im still unsure about a few things.. I will post a pic of the box I am planning on building. I need some help with bracing the box. Any input would be muchly appreciated.

FusionMadsen

iTrader: (4)

I hope that setup blows you're ****ing mind!

smith

iTrader: (1)

I cant even imagine what 4 T2's would sound like. It scares me..

thumpper

iTrader: (1)

I have built/designed 50 or so enclosures for the 12" T2 subs...

I would go no bigger than 2.25cf3 per sub plus sub and
port dissplacement....
I would also make seperate cavities (2 subs in each)
and tune them between 33hz and 35hz

here is a pic of one of my T2 designs...it hits like a Mother F***** and
the body flex is insane

booyah

Thats what I like to hear!!!

Well if my math is correct I should have just over 2^ft per sub I could go bigger tho. 33-35hz eh.. I will adjust the port for a 33hz tune then. Thanks buddy, by the way thats an awesome looking box.

loudtdi

iTrader: (1)

3.12 cubic feet gross per sub is ideal for a box that will go hard. So, you are right on track with your box size.