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Reit38
07-18-2006, 06:23 PM
right now i have 2 12s in a prefab i have only 38wide X 16 high X 18 deep to work with so im thinking of going sealed for my 2 type r 12's '04 pushed by a rockford 750s 2 channel

should i just make my box to fit that

also should i do 1 or 2 chambers

:eyebrow:

Demi
07-18-2006, 06:30 PM
Im dealing with type-r box questions myself right now, so i dont know how much help i can be, but i think for sealed, you would want seperate chambers so the subs are "fighting" each other. Alpines manual tells you the "optimum" diamentions of a sealed enclosure for one sub. I would just double that up and let them share the center baffle.

Reit38
07-18-2006, 06:51 PM
i was plannin on havin 2 since thats wut i thought everyone used for sealed

Demi
07-18-2006, 06:55 PM
I suppose you can do as many or as few as you like. But yeah just give them each the recomended space and have them share the center wall.

PatFitz9
07-18-2006, 09:08 PM
you can fit a ported box in that area...

woc47
07-18-2006, 09:20 PM
go ported you will be much happier, plus requires less power for more output.

snb778
07-18-2006, 09:25 PM
ported=MUCHHH happier

96civ
07-18-2006, 11:34 PM
but i think for sealed, you would want seperate chambers so the subs are "fighting" each other
Negative. You want separate chambers in a sealed enclosure so that the drivers aren't fighting each other.

Badfastbusa
07-18-2006, 11:54 PM
if you are dead set on going sealed the recommended specs per sub is .7cuft-1cuft

i would definately go ported if you have that much space... i have moe lester's 4.4cuft ported box tuned at 32hz and it is ****** to say the least! check it out, there is a thread that is labled box plans and it is sticky'd at the top of this forum... that is what i would do if you have the space.

Prowler573
07-18-2006, 11:57 PM
And to add my $0.02 to this thread there have been user after user after user reporting considerably less than positive results running Type Rs in a sealed configuration.

I have no experience with any model of the R myself but all the press on them would indicate that they much prefer a vented alignment.

Reit38
07-19-2006, 12:35 AM
are any of those plans going to fit my demensions tho
and still sound half way decent
thanks for the help guys i was under the inpression ported = big box & lots of space

Demi
07-19-2006, 07:43 AM
Negative. You want separate chambers in a sealed enclosure so that the drivers aren't fighting each other.
Whoops typo. ARENT.

AlpineUser
07-19-2006, 11:23 AM
i'll give you plans for free for a sealed box for 2 12" R's

Demi
07-19-2006, 01:50 PM
i'll give you plans for free for a sealed box for 2 12" R's
How do they sound in the sealed box? Is it loud at all?

AlpineUser
07-19-2006, 03:51 PM
it gets pretty loud nad hits about every note

PSturmer
07-19-2006, 04:42 PM
right now i have 2 12s in a prefab i have only 38wide X 16 high X 18 deep to work with so im thinking of going sealed for my 2 type r 12's '04 pushed by a rockford 750s 2 channel

should i just make my box to fit that

also should i do 1 or 2 chambers

:eyebrow:


lol, you will get more spl with one type R ported with 3 cubes net

PSturmer
07-19-2006, 04:43 PM
as mark even said, type R's hate sealed.

PSturmer
07-19-2006, 04:44 PM
i have 2 plans for a type R ported. if you need them just ask.

Prowler573
07-19-2006, 04:45 PM
as mark even said, type R's hate sealed.
Very few people on this forum outside of Tommy care one whit about anything Mark has to say about much of anything :fyi:
That's not a flame ~ just fact.

Reit38
07-19-2006, 09:10 PM
anyone else????????

PSturmer
07-20-2006, 12:42 AM
Very few people on this forum outside of Tommy care one whit about anything Mark has to say about much of anything :fyi:
That's not a flame ~ just fact.



lol

Reit38
07-20-2006, 09:10 PM
so wut will it sound like if i put it in a ported box built to my max demensions?

RFmustang
07-21-2006, 11:15 AM
so whats the optimum ported enclosure for a 12" type-r?

Reit38
07-21-2006, 04:59 PM
uppin