need box plans for one 12" sub
#1
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
need box plans for one 12" sub
so i just got my alpine type r sub..it was sucha steal that i had to buy it ($80 bucks) i m thinking about building a 1.75 cu ft ported box for it.. if you guys have any plans i can use, that would be awesome
thanks
thanks
#3
Your best bet is to build it to alpine specs. See if you can find measurements somewhere on their site or in the sub's manual (I got mine right out of the JL manual that came with my sub). If you can't find them, I can give you the measurements I used. My box has an internal volume of 1.75 cu ft (after port volume and sub displacement) and the port is tuned to 30.8 hz.
#8
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
na my friend bought it and then he decided that he wanted JL's so he sold it to me.its brand new..this kid is just spoiled and dumb
but i could really use some plans for a sealed 1.0 cu.ft box if anyone has any idea, that would help a lot
but i could really use some plans for a sealed 1.0 cu.ft box if anyone has any idea, that would help a lot
#12
clean deep bass? if you want to go deep with a sealed box, it'll have to be larger than usual so the sub can play lower. i'd go ahead and put it in a ported box, tuned low if you want any sort of SQ.
#14
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
Originally Posted by AscendantMax
clean deep bass? if you want to go deep with a sealed box, it'll have to be larger than usual so the sub can play lower. i'd go ahead and put it in a ported box, tuned low if you want any sort of SQ.
so if the recommended sealed box volume is .7 to 1.0 cu ft..can i build a 1.25 cu ft sealed box and get low and clean bass? id much rather have sealed than ported for this particular sub
#17
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
Originally Posted by slickrick
yeah 1.25-1.5 even would be ideal for what you are looking for...just make sure you dont bottom out the suspension.
#19
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
hmm i see, well i most likely will build a 1.25 cu ft sealed box..and it will be just a square i suppose..damn i tried looking all over google and caraudio.com and i cant find a picture or plans..also the amp will be around 400-500 watts rms
#20
http://www.bcae1.com/
try link 110...its very very easy to figure out a 1.25 cuft sealed box. give us rough dimensions if you need help.
try link 110...its very very easy to figure out a 1.25 cuft sealed box. give us rough dimensions if you need help.
#23
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
hey so i used that program and made a 1.254 cu ft box..but i read somewhere something about the volume that the sub takes up inside the box? do i have to change the size of the mdf boards for that? or could i just go by the size the program gave me? or is it all the same?
edit: also does it matter if i make the box really wide then semi high and not so deep..or if i made the box really deep and not that wide? will it sound the same or which one is ideal?
edit: also does it matter if i make the box really wide then semi high and not so deep..or if i made the box really deep and not that wide? will it sound the same or which one is ideal?
#25
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
Originally Posted by AscendantMax
yeah, so you'll have to make the box a little bigger to compensate for the displacement of the sub.
#27
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
"also does it matter if i make the box really wide then semi high and not so deep..or if i made the box really deep and not that wide? will it sound the same or which one is ideal?"
come on guys i really need this question answered..im going to buy the material tommorow
come on guys i really need this question answered..im going to buy the material tommorow
#30
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
so i build a box today and it turned out to be 1.619 cu ft...and the recommended is 0.7 to 1.25 for sealed..is this too big? or is it nice if i get a little less powerful amp? i mean the difference isnt THAT huge..i might go with 400 rms instead of 500 now since the box is pretty big..can this be bad for the sub and should i trim it down?
#32
It's just a recommendation, you may like it in the 1.6. If not, add some bracing, internally, to eat some space. Sealed enclosures are the most forgiving. Or you could add a 3" diameter port, 10" long, to it. That will be tuned to 30 Hz, which you will likely be happy with. Plus you could build a plug for the port, if you wanted to go back to a sealed enclosure. 1.6 is probably a little smaller than the suggested ported box size for the sub, I'm guessing, though.
just an idea,
dh
just an idea,
dh
#33
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
Originally Posted by AscendantMax
what are the dimensions of the box? also, after you put in the sub, internal volume will go down a bit.
#35
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
hmm nice man..i think ill leave it this way..ill take pics soon and show you how big it looks..hey but i have one more question..what exactly does it mean to "tune the box" does that mean adjust the amp or actually do something with the box itself?
#39
Supporting Maxima.org Member
![](https://maxima.org/forums/images/smilies/support.gif)
Thread Starter
iTrader: (2)
Join Date: Jan 2005
Location: NY
Posts: 1,055
Originally Posted by slickrick
drill a hole for the wire if you want to save time and $...
so a terminal cup doesn't do much then? and i guess i can just run the speaker wire directly from the sub to the amp