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View Full Version : About to build a box for 2 9510's in my ranger...need help



bunkerking09
08-05-2008, 03:32 PM
I hope to start the build tomorrow, before i do i've got a few last minute questions.

1. I'm shooting for a crazy high number in SPL, so i'm tuning to 40hrz, this sound good or no?

2. I THINK that 9510's are .25 displacement, so i was shooting for a box that would be 3.75 after wood and port displacement so that after subs it would 3.25, thats what DD's site recommends but i'd like to get a second opinion.

3. How to port this? Aero's or just making a port wall, still up in the air

KHARPS
08-05-2008, 03:33 PM
Is this going in the standard cab? I can't wait to see this if it is.

bball09124
08-05-2008, 03:37 PM
When designing SPL boxes, the bigger the port the better, the longer the port the better. And you usually want the woofers as far away from the opening of the port.

i'd try 3 cubes tuned anywhere from 40-45 with as many 4" or 6" aeros as you can fit.

bunkerking09
08-05-2008, 03:38 PM
no no no, extended cab lol. Fitting 1 9510 behind the seats of a standard cab is hard enough, two would be impossible lol.

KHARPS
08-05-2008, 03:39 PM
Haha, I couldn't even fit the 10'' BL back there I was wondering how in the hell you were going to pull off 2.

KHARPS
08-05-2008, 03:41 PM
But why not grab a pair of 4'' aeros or maybe 1 6'' and have it be external? Also, I have no clue about the displacement but the site says .5 or whatever (which I saw you mention earlier) but that has to be way too high. Even .25 seems pretty high.

Rashaddd
08-05-2008, 03:46 PM
most 18 inch drivers have displacements around .25, thats pretty big for 10's

bunkerking09
08-05-2008, 03:52 PM
But why not grab a pair of 4'' aeros or maybe 1 6'' and have it be external? Also, I have no clue about the displacement but the site says .5 or whatever (which I saw you mention earlier) but that has to be way too high. Even .25 seems pretty high.

best place to buy aeros?

KHARPS
08-05-2008, 03:57 PM
http://www.partsexpress.com/webpage.cfm?FILTER=precision+port&FTR=precision+port&search_type=main&WebPage_ID=3

They're expensive though. After shipping a 3'' aero comes out to $21 or something rediculous.

bunkerking09
08-05-2008, 04:00 PM
i would go with a 6" port, would i only order one? to tune it to 40hrz it looks like it would need to be 12" long

KHARPS
08-05-2008, 04:07 PM
3*3*3.14=28.26 square in of port. I don't know if that will be enough for you or not.

bunkerking09
08-05-2008, 04:09 PM
3*3*3.14=28.26 square in of port. I don't know if that will be enough for you or not.

what math are you doin man?

try this place...

http://www.the12volt.com/caraudio/boxcalcs.asp

bones22
08-05-2008, 04:12 PM
3.25-3.75ft3
60-70sq" port
tune around 40-44hz

bunkerking09
08-05-2008, 04:16 PM
3.25-3.75ft3
60-70sq" port
tune around 40-44hz

so you wouldn't bother with aeros?

bones22
08-05-2008, 04:17 PM
so you wouldn't bother with aeros?

ive never used them myself.

ive wanted to try them at some point but just havent.

bunkerking09
08-05-2008, 04:27 PM
i think i'd rather save my 50 dollars

KHARPS
08-06-2008, 10:02 AM
what math are you doin man?

try this place...

http://www.the12volt.com/caraudio/boxcalcs.asp

That is how you figure out the area of a circle (Pi*radius^2). For a 6'' aero you would get around 28 square inches of port. But I messed around with a 3'' aero for my 10'' BL and got a lot of port noise on the lower frequencies....so maybe sticking with a regular slot port would be better. What about subs up and port to the side?

bunkerking09
08-06-2008, 10:33 AM
i think i am actually going to go with an aero port, but i'm confused on what i need to order, it doesn't tell me how long the 6" piece is...

nevermind i don't know what i want to do...lol

skmfkr
08-06-2008, 11:38 AM
http://www.ddaudio.com/dd/caraudio/enclosureInfo/mountingData.asp

i dont see it say .25, its .521

bball09124
08-06-2008, 12:18 PM
i think i am actually going to go with an aero port, but i'm confused on what i need to order, it doesn't tell me how long the 6" piece is...

nevermind i don't know what i want to do...lol

17" or something like that.