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tapout383
02-26-2009, 11:58 PM
I need a box for 3 Alpine Type-R 12s...probbaly gonna run around 2000rms...Would like to use aeroports if at all possible port and subwoofer back if possible...max dems would be 35w X 26D(or less if possible) X 18h. would like to have atleast 6 cubes not sure on tunning yet.

jdawg
02-27-2009, 12:12 AM
hmm lets see, 3 12's, 12x3 =36, you have 35 width, not including the spacing and a 12" sub has a 12" cone and sorround, plus the basket, might want to rethink that.

tapout383
02-27-2009, 12:14 AM
hmmm.. ok soo lets try subs up and port back...

thegreatestpenn
02-27-2009, 12:47 AM
the problem is that to make a box that is 6cu.ft. with sufficient port area, bracing, and factoring in the area the subs will take up, will be a stretch.... unless you have the subs inverted.

tapout383
02-27-2009, 12:54 AM
here is just a quick sketch up i did...
http://i42.tinypic.com/2mpec0g.jpg

You said it would be a stretch...now i could make the depth 28 or 29 but i didnt really wanna do that but i can its possible how much would that help?

thegreatestpenn
02-27-2009, 12:56 AM
look at how small those ports are. personally, you'd need at least 2 6" aeroports, maybe 3. That or 4-6 4" aeroports. 3 won't cut it IMO

tapout383
02-27-2009, 12:59 AM
it isnt built to spec just of what i would want it to look like....so lets say this 3 6 inch aeros...max dem of 18h X 36w x 28d...after subs and bracing and port...how diffcult would it be

thegreatestpenn
02-27-2009, 01:02 AM
with 3 6" aeros you don't have the space. the ports alone would take up almost 2 cu.ft. gross internal space with your said dimensions is 8cu.ft.

tapout383
02-27-2009, 01:04 AM
Dang...and a reg slot port wouldnt do any good guess im stuck with two 12s :(

jdawg
02-27-2009, 01:05 AM
i bet 3 4's would be fine but that is still cuttin it close

thegreatestpenn
02-27-2009, 01:06 AM
try 1 18 instead man*. sell ur aaarrrghs and get a nice 18. more cone area than 2 12's but would work in your space better

tapout383
02-27-2009, 01:06 AM
well it would be either 3 type-rs or two 12 hdc12s just figured the 3 would be louder if i could get them to fit...

jdawg
02-27-2009, 01:07 AM
3 12's only has a lil more sd than an 18

Rashaddd
02-27-2009, 01:10 AM
3 12's only has a lil more sd than an 18

~35% :fyi:

tapout383
02-27-2009, 01:12 AM
try 1 18 instead man*. sell ur aaarrrghs and get a nice 18. more cone area than 2 12's but would work in your space better

haha ive been planning to do that for so long :( i guess its back to the ol 18 then since u said so...i have this one already sketched and planned was my original design its5.5 at 38 which was designed to work with the hdc18...?think it would work or should i used aeros?35w x 18h x 24 3/4 d


http://i40.tinypic.com/ic8sya.jpg

jdawg
02-27-2009, 01:13 AM
what about 200 cm2

thegreatestpenn
02-27-2009, 01:14 AM
haha ive been planning to do that for so long :( i guess its back to the ol 18 then since u said so...i have this one already sketched and planned was my original design its5.5 at 38 which was designed to work with the hdc18...?think it would work or should i used aeros?35w x 18h x 24 3/4 d


http://i40.tinypic.com/ic8sya.jpg

see that's a nice design. you could do aeros if you like, but that design is nice too

tapout383
02-27-2009, 01:15 AM
see that's a nice design. you could do aeros if you like, but that design is nice too



trying to get my arse ready for meca SPL comp coming up in april aint looking to good though :(

thegreatestpenn
02-27-2009, 01:18 AM
me too, I need a batt tho, my initial box (there in my sig) is done and ready for S1!!!

tapout383
02-27-2009, 01:38 AM
how would i make the angled 3 inch cut in this sketch?
http://i40.tinypic.com/2epkrih.jpg

tapout383
02-27-2009, 01:44 AM
and would i have to use that angled peice if i did aeros cuz i dont really know or want to cut that pieace out

alvitae
02-27-2009, 01:49 AM
how would i make the angled 3 inch cut in this sketch?
http://i40.tinypic.com/2epkrih.jpg

Set the table saw to 45 degrees, 2 x 45 = 90.

tapout383
02-27-2009, 01:55 AM
Set the table saw to 45 degrees, 2 x 45 = 90.

aaaaahh....thatd be great if i had a table saw :crap:

alvitae
02-27-2009, 02:01 AM
In that case use a straight edge like a level and clamp it on the board and use it a a circular saw guide.

SSS 18734
02-27-2009, 02:09 AM
There's no reason your 3 Type R's wouldn't work. You have 7.6 cubic feet of airspace to work with before displacements. You may have to settle for 5.5 cubic feet or so, but that's not really a big deal.

I'd rather just use a single 18, though. You can make that cut with a circular saw, since most of them can cut angles.

tapout383
02-27-2009, 02:11 AM
There's no reason your 3 Type R's wouldn't work. You have 7.6 cubic feet of airspace to work with before displacements. You may have to settle for 5.5 cubic feet or so, but that's not really a big deal.

I'd rather just use a single 18, though. You can make that cut with a circular saw, since most of them can cut angles.

yeah i think im gonna go ahead with the AQ 18...

tapout383
02-27-2009, 01:28 PM
How much mdf am i goning to need?