Dd 1508

[azimuth 5,000+ posts]

i finally get to build a box for one. i always hear that they are a nice 8. i designed a box for it, and with major space constraints, i can squeeze .9 ported @ 38hz, using a 3 inch aero. can i expect to be surprised by this little thing in that box? i actually recommended this sub without ever hearing it:crap:. it's going underneath the back seat of a chevy extended cab. sub and port firing forward.

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[Supergumby5000 5,000+ posts]

i finally get to build a box for one. i always hear that they are a nice 8. i designed a box for it, and with major space constraints, i can squeeze .9 ported @ 38hz, using a 3 inch aero. can i expect to be surprised by this little thing in that box? i actually recommended this sub without ever hearing it:crap:. it's going underneath the back seat of a chevy extended cab. sub and port firing forward.

you can only get .9 ported from under an ext cab seat? you're doing something wrong.

It should perform well either way though.

 

[adas Pro Seller]

.9cu.ft is perfect...3" aero will work well too. Only thing I'm unsure about is sub/port forward, but it might turn out well. what are you waiting for, play it already!

 

[rumblebee2 10+ year member]

should get a lot more than .9cuft.

 

[Kastlez_ 10+ year member]

should sound coo, don't expect the world though.

 

[bones22 5,000+ posts]

is that .9ft before or after disp?

 

[azimuth 5,000+ posts]

you can only get .9 ported from under an ext cab seat? you're doing something wrong.
It should perform well either way though.

i'm working within the parameters of what he wants. 1/2 the space under the seat, on the drivers side, so it's not the entire length. and it actually came out to .85 at 38hz after displacement. it's too late, as he has the sub, but there aren't many other subs i could think of that would work in that small space. he ruled 6.5 inch subs out from jump.

 

[thevic24 5,000+ posts]

should be good, mine took some time to loosen up and when it did it played a lot lower and took quite a bit of power. how much power is it getting?

 

[wilson 10+ year member]

I have 3 of them under the seat of my F-150 sub forward / port forward. I can tell you from experience, thats not the way to go. You either need to build a loading wall for the sub or I'd probably do sub down / port side in that truck.

They can bottom out pretty **** easily w/o someting to load off of, especially if that port is not loaded either. You've got to understand, the 1508 is like putting a Corvette motor on a motorcycle. These things are waaaayyyy over motored for the little amount of moving mass they have. They need something to load off or they look like the cones want to jump out of the **** basket.

I'm working on designing a new box for mine now...

 

[adas Pro Seller]

They can bottom out pretty **** easily w/o someting to load off of, especially if that port is not loaded either. You've got to understand, the 1508 is like putting a Corvette motor on a motorcycle. These things are waaaayyyy over motored for the little amount of moving mass they have. They need something to load off or they look like the cones want to jump out of the **** basket.

I'm working on designing a new box for mine now...

haha...so the truth. loading is KEY with these. Building a smaller box helps, but it sacrifices the lows a bit which isn't my style.
Though I hear sub forward, port to the side would work well for you...and then if the sub unloads easily, use a plexy glass sheet to make a cool loading wall and will also protect from someone kicking the sub //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[azimuth 5,000+ posts]

did sub forward, 3 inch aero port to the passenger side. surprising little sh!t. gets pretty loud and low for an 8 in .85 cubes. i tried to take pics, but my camera is not working:crap: it could probably perform ok in an even smaller enclosure if absolutely neccesary. great sub for small spaces. thumbs up to DD.

 

[Canaan 10+ year member]

What year ext cab chevy did this sub end up in?

I have some crazy designs for 2000+ ext cabs, one of them can even fit a DD2510 downfire w/ space on the passenger side for the amp to mount. There are some little tricks w/ ext cabs for boxes under the seat //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[bigbowtie 10+ year member]

i had 4 in a single cab chevy and runnin 300 watts rms per sub and the box was way to small and they still hit hard the box was only 1.5 cu per 2 subs