View Full Version : Need Design for 2 Id Max's

12-01-2007, 11:33 AM
I have 2 12" id max's and will be pushing around 2000 watts to them
Max dimensions are

These are the dimensions and I want it to be a ported box tuned to around 32-35 hertz.
Help me out here if that would be a good tune for sq and still be able to hit the lows.

12-01-2007, 12:10 PM

12-01-2007, 12:54 PM
ttt will throw some money out if neccasary

12-01-2007, 01:12 PM
didnt u just post this a couple days ago...

12-01-2007, 08:42 PM
yeah for a sealed box now I want to see a ported design

James Bang
12-01-2007, 08:48 PM
I dont' think you have enough room to go ported. I got 4.49 cuft with those dimensions and that's not counting sub and port displacement that you will need to factor in.

I say you go sealed... or one ported.

12-01-2007, 08:50 PM
I will probally go sealed I had a ported box before but i don't think it was properly tuned and all of that good stuff. I think sealed is the way to go then.

12-01-2007, 08:51 PM
I dont' think you have enough room to go ported. I got 4.49 cuft with those dimensions and that's not counting sub and port displacement that you will need to factor in.

I say you go sealed... or one ported.

do you have your id max ported?

James Bang
12-01-2007, 08:54 PM
Mine is IB'd and love it.


12-01-2007, 08:55 PM
I was looking at that before did you always have it IB?

James Bang
12-01-2007, 08:59 PM
I went through a couple of setups with IDmaxs.

1 sealed, 2 sealed, and 1 ported. I prefer IB now.

12-01-2007, 09:01 PM
I read that thread before and just now and i'm thinking of going that way. The only thing is that i will have to keep my seats down all the time. i usually do but when I park somewhere i put them up. How did you like the 2 sealed as far as bass?

James Bang
12-01-2007, 09:18 PM
having your seats down is not a must if you go that route. I have my seats up the majority of the time because i've been too lazy to fold them down all the time, and i can barely notice any difference if there is any.

when I had 2 sealed, it was nice, but i wanted more output. I'm thinking that my trunk or the placement of my box was not optimal for high output. I had vent that I didn't seal up at the time and the box was in the middle of the trunk. Like in HT, if the sub was in the middle of the room, the output wouldn't be as great as if the sub was in a corner.

since you have a pair of IDmaxs... I would definately go IB. My one 12" has very nice output and spectacular lows... Two would just be outrageous.

12-01-2007, 09:32 PM
Then IB i shall go I'm still going to build a sealed box and test it out. I have to start sealing off my whole trunk now. Does this mean I have to take my 6x9"s out of the back shelf?

James Bang
12-01-2007, 11:44 PM
yup.. sell them. rear fill is not needed. :)

12-02-2007, 12:40 AM
okay I will prob just keep them just in case I change again which will probally happen. What should I feel these holes with now? I know you used tons of foam which I will get tmrw and I will have a gallon of sound deadner and some sheets of sound deadner should that be enough. My whole trunk is done already with dynamat so I will have to do the back shelf and probally do everything with the liquid. Should this be good enough?

James Bang
12-02-2007, 05:11 AM
It sounds like you're good to go. You'll just need to foam all the areas that lead from the trunk to the cabin. It's all common sense. As long as your trunk is sealed from the cabin, it's all good.

for the 6x9 holes... if you do plan to use them again... which I wouldn't recommend anyways, because a strong front stage is all you need...
then just get some 1/4" mdf and cut it to size and just screw them down to cover them holes and place some weather seal underneath it to seal it up without it beign permanent.

if you do decide to ditch those 6x9"s forever, then use some type of silicone/adhesive to seal off the 1/4" mdf over the 6x9" holes, which is what I did.

the trickiest part for me was making the baffle piece the perfect shape. using cardboard to get a template helps a lot. Then just trace it onto birch or mdf and cut w/ a jig-saw.

12-02-2007, 10:31 AM
okay looks like I will be starting this today and hopefully have most of it done. will take pics as I go along and big thank you to James Bang