Need to build a Box for Gmc Sierra Ext. Cab.

[bri487 5,000+ posts]

fire a two 4" aeroports to the rear. having the sub/ports on the same plane isn't important, well, as important as some people believe. IME, sub firing down, ports to the rear is the loudest in these trucks, if your staying under the seats.

as too finding the length...check out casrstereo.coms calculator. works pretty good.

and in case your wondering..i've got a lil experience with xcab chevy's...



that's a single memphis pr ten.....tuned to 38hz...



that's a dual ten memphis hpo box.

and i've thrown a solo x 18 in there too...with the backseat in and out....

wheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee //content.invisioncic.com/y282845/emoticons/peace.gif.2db28b618ed8d1964ebbe2f5021d2c39.gif

port to the rear is the loudest. as far as the woofer direction. when sealed, downfiring, but ported, with upfiring you can gain more airspace. just counter sink the woofer so it doesnt hit the seat.

i also have a ton of experience with extended cab chevy's. my dealer and i have been playing with mine for over a year now. now like 4 or 5 boxes down the road, two 12"s sealed, two tens sealed, a single ten ported, we ended up with two tens ported. the bass soudns absolutly great. very tight and energetic, not to mention loud. next i think he wants to try three 8"s ported.

 

[Rc 415 10+ year member]

So... Can you help get me some plans for a 12" SI Mag Ported with 1.5 cubes tuned to 32 hz? Also fitting under the rear seat firing up?

 

[Rc 415 10+ year member]

The port area will need to be around 870 cubic inches(.5 cubic feet), plus the 1.5 cubes on top of that for the box.

 

[bri487 5,000+ posts]

So... Can you help get me some plans for a 12" SI Mag Ported with 1.5 cubes tuned to 32 hz? Also fitting under the rear seat firing up?

pretty much just make the box as big as you can under that seat, and get every bit of airspace you can out of it, then worry about the port later. yea, mine is all under the seat, and my seat is lifted up a little bit.

 

[Rc 415 10+ year member]

Any chance you can get some drawings?? Btw, just noticed your in Cali, what part?

 

[Rc 415 10+ year member]

bump

 

[Rc 415 10+ year member]

bump

 

[Rc 415 10+ year member]

bump for box+port design

 

[Rc 415 10+ year member]

^^^

 

[Rc 415 10+ year member]

bump for slot prt design??

 

[Rc 415 10+ year member]

External ports??

 

[prochobo 10+ year member]

Just to let you know, Sketchup IS free. Google bought part of the company and is now distributing it for free, the non pro version that is.

 

[lilmaniac2 5,000+ posts]

theres a few places on the net where u can pick up a pro serial number

 

[amartin_72]

DUDE Build the box that is as large as your cabs **** your rear seats. Make the truck LOUD and build a mini wall behind your seats and pump that shit! Stick with it dude Ill bass race you!

 

[Rc 415 10+ year member]

Thanks guys, I'll look into the sketch up!

Amartin, I never thought about the space behind the back seat, I'll have to take a peek and see what there is for space back there. Bass race would be cool, but you are too far from me!