I also need help designing a box...
#1
I also need help designing a box...
Hey guys,
Love the forums! A little bit about me, 16 years old, 'restoring' a truck to drive come Nov. when I get my G2 and working on a system.
Ok, give me wood and I can build anything, give me metal and I can weld anything, even give me measurements and I can design anything, HOWEVER, I completely utterly SUCK at coming up with the dimensions of a box. (my really weak point...)(btw... ^all of that was an exageration... LOL)
So I need a little help, even guidence where to start would be awesome.
I have three 8" subs and need to make a ported enclosure for them. I can do 3 seprate enclosures or 1 big one. Which do you think is best?
I want it to hit as hard as possible.
I have about 9" wide x 40" long to work with and it can be as high as it needs to be. I would like to have the subs mounted on the top and 9" should allow them to just fit, if not I may be able to squeeze a few more inches out of it.
Any suggestions on sizes / methods to build it / programs to use?
If someone wants to throw together a design that would be great!
Here are the specs:
Fs 22.8Hz
Re 3.2DVC
Qms 4.21
Qes 0.38
Qts 0.34
Sd cm2 195
Vas 27.1
Xmax 1way 12mm
BL 15.4
SPL 1W/1m 81.2
RMS 175W
Max 250W
Thanks
Zac
P.S. This is my starter system. I may be upgrading to a SPL competition stereo in the near future.
Love the forums! A little bit about me, 16 years old, 'restoring' a truck to drive come Nov. when I get my G2 and working on a system.
Ok, give me wood and I can build anything, give me metal and I can weld anything, even give me measurements and I can design anything, HOWEVER, I completely utterly SUCK at coming up with the dimensions of a box. (my really weak point...)(btw... ^all of that was an exageration... LOL)
So I need a little help, even guidence where to start would be awesome.
I have three 8" subs and need to make a ported enclosure for them. I can do 3 seprate enclosures or 1 big one. Which do you think is best?
I want it to hit as hard as possible.
I have about 9" wide x 40" long to work with and it can be as high as it needs to be. I would like to have the subs mounted on the top and 9" should allow them to just fit, if not I may be able to squeeze a few more inches out of it.
Any suggestions on sizes / methods to build it / programs to use?
If someone wants to throw together a design that would be great!
Here are the specs:
Fs 22.8Hz
Re 3.2DVC
Qms 4.21
Qes 0.38
Qts 0.34
Sd cm2 195
Vas 27.1
Xmax 1way 12mm
BL 15.4
SPL 1W/1m 81.2
RMS 175W
Max 250W
Thanks
Zac
P.S. This is my starter system. I may be upgrading to a SPL competition stereo in the near future.
#3
"I have about 9" wide x 40" long to work with and it can be as high as it needs to be. I would like to have the subs mounted on the top and 9" should allow them to just fit, if not I may be able to squeeze a few more inches out of it."
To clarify, its an EXT. cab truck, however I still want to try and keep the back seats so I am thinking a center console. Which would follow the above demensions.
Thanks,
Zac
To clarify, its an EXT. cab truck, however I still want to try and keep the back seats so I am thinking a center console. Which would follow the above demensions.
Thanks,
Zac
#4
Put these numbers into winisd, and clearly I dont know how to use it yet, you could try google WINISD its a speaker box design software and its free
Im gonna say they dont look like your gonna get a lot of slam out of them but will give you more than what you got, Build a ported box and tune high for more SPL
BTW what amp are you using, my bad for not reading your whole post before replying last time
Im gonna say they dont look like your gonna get a lot of slam out of them but will give you more than what you got, Build a ported box and tune high for more SPL
BTW what amp are you using, my bad for not reading your whole post before replying last time
Last edited by TravisB; 09-27-2006 at 03:25 PM.
#7
Zac, i got a design figured out for ya. this should work for your 3 8's. you need to build your box to 2.25cu'. you can use 3 2"inside dim cir ports at 7.75" long or 2 3"inside areoports at 9.3" long.
I would build a slant face box. with the base at 7.5X40
Back at 19.5X40
top at 3.5X40
face at 20X40
sides at 7.5X18 then cut top to 3.5
that will work for a rec cab truck,
I would build a slant face box. with the base at 7.5X40
Back at 19.5X40
top at 3.5X40
face at 20X40
sides at 7.5X18 then cut top to 3.5
that will work for a rec cab truck,
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