Box/Port design help

 

Bronze Member
Username: Bigharv

Post Number: 25
Registered: Jun-07
Ok, ive been working on my first box for 2 budget 12"s just as kinda practice. I've got my dimensions and everything measured out to make it a 4ft^3 box. Now I've started cutting out my peices and I cant figure out the port part yet. I drew up some designs for the box so tell me if this looks right.

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The dimensions are 32 long, by 19 deep and 14 high. The speakers are 12" for the perspective.

I'm trying to tune it to 35 hz and based off the port dimensions of what I have drawn, the opening is 2x14. I used an online calculator and it said the length should be 10". Does this design look correct? the port looks akward and not very functional this way like it might be too short. I just need to know if this is right so I can feel confident gluing my box together.
 

Bronze Member
Username: Bigharv

Post Number: 26
Registered: Jun-07
Upload
 

Bronze Member
Username: Bigharv

Post Number: 27
Registered: Jun-07
Upload
 

Bronze Member
Username: Bigharv

Post Number: 28
Registered: Jun-07
c'mon now anyone?
 

Gold Member
Username: Van_man

Boston South, MA

Post Number: 2616
Registered: Mar-06
Try this thing and see what it gives you.

http://www.subwoofertools.com/forum/ported-box.asp
 

Gold Member
Username: Van_man

Boston South, MA

Post Number: 2617
Registered: Mar-06
Heres another one.

http://www.reaudio.com/speaker_box/LPort_Box_Calc.html

And lastly,

http://www.carstereo.com/help/Articles.cfm?id=31
 

Bronze Member
Username: Bigharv

Post Number: 29
Registered: Jun-07
Upload

Here is my new box design. The box dimensions are 32x18x19 and the port is 4x18 and its 18 inches long. this should be a 32hz tuning. how does that look?
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