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View Full Version : Need help designing ported box for 2 12" type r's



asager203
12-31-2009, 12:25 PM
I'm planning on building a ported box with two vents in the middle of the box, with each sub in a separate chamber. If someone has a good template or layout of a box that would work well with these subs, could you give me a link or a picture, that would be great. I got these specs of Alpines website:

For a vented Enclosure the reccomended dimensions are:

18" x13.5" x 16.5" but i dont know what is what? which is width? height? depth?
and the vent length is 22.75", how can that work if none of the above numbers are atleast 22.75??


any help would be great!

bassman3
12-31-2009, 04:28 PM
i can daw up a design + give you a custlist of the exact cuts needing to be made for $10. if you want just send me an email DLaudiotech@gmail

SicAudio
12-31-2009, 04:41 PM
3.531cu ft internal

38Hz tuning

: MDF

32 wide x 14 tall x 17.5 deep

Port = 12.5 tall x 3.5 wide

Length will be an L on either side : 12.5 deep and then 3.75 behind each sub

this is a shared space box with 1 port and will work way better :)

Deeper_shades
12-31-2009, 05:45 PM
^ yup go with that one one vent all the way

Deeper_shades
12-31-2009, 05:47 PM
admin should make "enclosure design for type r" a sticky!

bassman3
12-31-2009, 05:50 PM
admin should make "enclosure design for type r" a sticky!

for real

RAM_Designs
12-31-2009, 05:53 PM
From what I remember, type r's love 2-2.5ft^3 each tuned to 35hz.

asager203
01-01-2010, 02:51 AM
hey thanks guys for all the help.

if i used this.

3.531cu ft internal

38Hz tuning

: MDF

32” wide x 14” tall x 17.5” deep

Port = 12.5” tall x 3.5” wide

could i make them seperate chambers? dont subs normally sound better that way?

SicAudio
01-01-2010, 02:53 AM
not in this case shared space is alway better it reduces the overall box by upto 25% trust me on this they will pound. i have used that design on many sub models and the type r and hifonics brutus subs assrape in that box.

Jason19
01-01-2010, 02:59 AM
tune lower like 30hz and do like 4 cubes common chamber

asager203
01-01-2010, 03:01 AM
alright sounds good, ill start building tomorrow. you said you have used this model before, do you have any printable layouts of any sort?

Jh8909
01-01-2010, 03:02 AM
tune lower like 30hz and do like 4 cubes common chamber

x2 a Pair of type R's like common chamber

asager203
01-01-2010, 01:17 PM
3.531cu ft internal

38Hz tuning

: MDF

32” wide x 14” tall x 17.5” deep

Port = 12.5” tall x 3.5” wide

Length will be an L on either side : 12.5” deep and then 3.75” behind each sub

this is a shared space box with 1 port and will work way better

how does that only come out to be 1 port? u said L on either side?

Deeper_shades
01-01-2010, 08:50 PM
http://photos-e.ak.fbcdn.net/hphotos-ak-snc3/hs179.snc3/20658_270587239277_151977224277_4685712_5884763_n. jpg

I aint no drafter, but I drew up a sketch for you :)

I forgot the height on the vent, its 12.5

SicAudio
01-01-2010, 08:53 PM
ty TJ ;)

05fronty
01-01-2010, 08:57 PM
i use one port on my 2 12's

Deeper_shades
01-01-2010, 09:06 PM
ty TJ ;)

no, thank you! :)

SicAudio
01-01-2010, 09:10 PM
anytime lemme know how you like it everyone so far out of 1000's of people have loved that design for type r subs lolz

asager203
01-02-2010, 12:45 AM
Thanks guys im going to make the box tomorrow, you guys were a great help!

SicAudio
01-02-2010, 12:48 AM
make a log and let everyone know how well the "free" design worked out ;)
i need to start charging for box designs lolz

jchancellortool
01-02-2010, 01:09 AM
Would you recomend that design for the R's even if you had room for 4 or 5 cubes?

Jaredturp
01-03-2010, 12:35 AM
http://img35.imageshack.us/my.php?image=44cubes32hz66sqin7et.png
All anyone needs for a type r enclosure ^^^^^^^^

Jaredturp
01-03-2010, 12:39 AM
Double

SicAudio
01-03-2010, 12:41 AM
Would you recomend that design for the R's even if you had room for 4 or 5 cubes?

if you want to push 1kw or more yes if no more than 800-1000 maybe 4.5 cubes per pair at the most depends what you want. i have done many dif ways and 3.5 per pair on 2kw at 38hz has always sounded the best and been the loudest overall.

BoomBoxTegra95
02-20-2010, 02:52 PM
I used your design to start building a box for my type r's. But it looks too small.....this can't be right

Jaredturp
02-20-2010, 02:57 PM
Which design?

BoomBoxTegra95
02-20-2010, 03:11 PM
http://photos-e.ak.fbcdn.net/hphotos-ak-snc3/hs179.snc3/20658_270587239277_151977224277_4685712_5884763_n. jpg

I aint no drafter, but I drew up a sketch for you :)

I forgot the height on the vent, its 12.5

i used this one, and it just seems to small for these subs. This is for the swd-1242's right???

Jaredturp
02-20-2010, 06:42 PM
I'm too lazy to calculate it.. what's the internal?

RAM_Designs
02-20-2010, 10:03 PM
I'm too lazy to calculate it.. what's the internal?

3.56ft^3 before any displacement, nowhere near enough for 12's...still kinda small for 10's. Not to mention it isn't designed right anyways. When the port splits in the back, you need to have half of the wider part of the port go each way, so 1.75" from the back wall for each port, then funneling into a 3.5" port.

Jaredturp
02-21-2010, 02:31 AM
Use the design I sent you a few months back ^^^ it's up there somewhere..