Trying to Tune My Box To 33hz ..... I'm Lost!

[dereileak]

You need to take away any bracing, ports, and sub displacements from your GROSS volume number. Net is what you are left with after all dispacements. Basic math/physics terms.

*Edit-I didn't mean to sound like a dick. I was trying to get you straightened out that's all. Sorry for being blunt and I hope you get it figured out. If it were me, I'd just close the box up and make it sealed and see if you like it.

im thinking of trying that cause if I do port it, im going to do a 100% external port on it, subs are gonna be external, with the cones pointing in, and bracing wont remove much space really, btw thanks

[Purplehaze]

I'll trade you a set of 12's

Good luck on your box man!

[audiofanaticz]

SMH.........

reallly?????? wow...... Speechless.....

[I am Poncho]

i might have a result for you let me do some math...

[I am Poncho]

alright sir this is what i got, so far its the way i would go with salvaging what you have and still being able to see out your rear window. if only just.

well from your pics i see that you have what looks like 5 inches above where your box tops out now to the top of the head rests. so that is what i went by... so i figured a little over 60^in should be good enough port area but if you or anyone else know/thinks otherwise its simple to modify this. so if you were to construct out of 3/4 mdf a port 5 in tall by 16.25 deep(that should be as deep as the top of your box already is) inside youll have port area of 4.25x14.75, okay so then the port would have to be 25 in long to get about 30hz tuning freq.

almost forgot.. you only need one sheet 25x16.25 that'll be the top most piece cause you already have the bottom which is the top right now. just cut a the proper size hole in the top and add the port onto whats already there.

so this would require you to mount your subs on the rear of the box. which seems like you have a ton of space for anyway.

now what do you all think??

edit: oh and your box net will still be over 6 cubic ft before bracing

[I am Poncho]

so i got bored after i ate dinner. here you go a mock up of what it would look like.. i tried to match how you have your cuts but its not perfect. the box in all looks goofy but should perform. if you want specs or anything ask

[dereileak]

so i got bored after i ate dinner. here you go a mock up of what it would look like.. i tried to match how you have your cuts but its not perfect. the box in all looks goofy but should perform. if you want specs or anything ask

man I would love to have the specs of the, thanks a bunch, how did you figure out the tuning?

[DudeWith4x4]

Lol I was just gonna suggest making the port a armrest for the backseats if thats possible in your car. Wrap in materail that matchs your seats and that would be bad ass imo.

[I am Poncho]

let me know if you need any others. i dont think you should.. also the 3 edges at end of the port are rounded 3/8" same as the one inside top lid part.

and dudewith4x4 that would be badass.

EDIT: btw all wood is 3/4"

[dereileak]

let me know if you need any others. i dont think you should.. also the 3 edges at end of the port are rounded 3/8" same as the one inside top lid part.

and dudewith4x4 that would be badass.

EDIT: btw all wood is 3/4"

Im wondering if you could design one with the subs on top, inverted, cause thats how I want to do it, then have the port come out the middle back of the box over the battery, coming up and over the top pointing towards the front of the vehicle, thats how I want to build it, ill sketch up something, the main thing is I need to leave room to mount a 2500.1 in the back where I where I am building another amp rack

Thats how I wanna Desgin it, with the port shooting up the front gotta make sure it clears that amp rack, like 6 inches deep would be fine, I would love ya for that 33hz a good tuning frequency for lows?