View Full Version : Very Quick Question About Tuning Boxes

07-08-2006, 06:50 PM
What would the below box be tuned to if say I only made it 29" or 28" wide?
http://img35.imageshack.us/img35/558/5cubes32hz62sqin6hk.th.png (http://img35.imageshack.us/my.php?image=5cubes32hz62sqin6hk.png)

07-08-2006, 06:52 PM
What did you use to make this box?

07-08-2006, 06:53 PM
like the thickness of the wood? it will probably be .75 MDF I havent made it yet

07-08-2006, 06:54 PM
No, what program?

Sorry I cannot directly answer your question though

07-08-2006, 07:03 PM
he actually got it from a sticky on this forum, its in the enclosure section, made by moelestor

07-08-2006, 07:14 PM
Ya, I was just wondering what it would be tuned to if i made it 28 or 29" or if someone can link me to a program where I can put in the dimensions and it show me

07-08-2006, 07:32 PM
28" wide:

4.5 ft^3 @ 33.4 Hz

29" wide:

4.75 ft^3 @ 32.5 Hz

30" wide:

5.0 ft^3 @ 31.66Hz

07-08-2006, 07:55 PM
thank you so much, how did you calculate that out though?

07-08-2006, 08:21 PM
i did the volume calculation in an excel file i have that is setup to work with the moe lester box plans (but you should be able to do it by hand if you have a very basic understanding of math :) )

i then plugged that and the port dimensions into WinISD


07-08-2006, 09:46 PM
Could you post up the excel file or send it to [email protected] please!!

07-08-2006, 10:43 PM
sent to your e-mail

07-08-2006, 10:48 PM
want to send it to my email too ?? [email protected]

07-08-2006, 11:54 PM
I forwarded to your email and everybody else that wants it can download it here.

Download Box Calculator Via Xluben (http://www.jakobmetzger.com/misc/BoxCalculatorViaXluben.xls)

Below is straight from Xluben's email he sent me....

here's the excel file i made. the top part is if you have round ports, the bottom part is for one slot port on the side of the box (like moe lester designs). you should be able to figure all of this out by hand pretty easily though. once you get the final box volume, enter that and the port dimensions into winisd (you can make a project with any driver), and it will tell you the tuning.

hope that helps,

07-09-2006, 11:08 AM
well, i hope that file helps everyone out. it has gone through a few revisions depending on the style of the box i was thinking of.

just make sure you use the round port calculator for round ports and the slot port calculator for slot ports. also, the slot port calculator is only set up for one port on the side of the box.

07-09-2006, 04:59 PM
ok, im confused with this. Is this how its supposed to look? Did I input everything right for a 29" box?

Ok, what if I wanted it to be 29" wide and only 23" for the depth.

07-09-2006, 05:53 PM
Man, if someone could do this for me really quick im going to start on my box as soon as you post it up. I really need this done, please help me out guys

07-09-2006, 07:52 PM
anybody ....please?

07-09-2006, 08:42 PM
first off, the height of the port should be 15.5" (I had the cell referenced, you must have deleted it).

and unless you add a corner to the port it won't be that long.

without adding a bend to the port (one straight wall, stopping 4" short of the back wall), i get:

4.14 ft^3 @ 36.33 Hz

you need to learn how to use WinISD :)

07-09-2006, 08:53 PM
thank you so much dude, i know well ive only had a few days to mess with WinISD and im leavin this friday so after work everyday im workin on this box and trying to get all the little things fixed on my truck, i just put an escalade front end on it and between trying to make brackets for that and this and work I dont have any other time. you have been so much help to me thanks so much

07-09-2006, 09:31 PM
no problem, hope you end up with a box that works for you.