Jump to content

Sign in to follow this  
mustangowner

check my box design (10" RE SE)

Recommended Posts

Finally decided to lose some weight in my trunk and go with one 10 instead of two. I am gonna use a 10" RE SE in a ported box...1 cube @ 35 hz (recommended compact box off RE's website) I used this box calculator to design the box.

 

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

 

I need to know if i will have any port noise, and any problems with the end opening on the port next to the sub hole.

 

thanks

 

boxlayoutts3.jpg

Share this post


Link to post
Share on other sites

How about this box? same dimensions port area, and tuning, but its 1.7 cubes and doesnt have 180* port angles. I would get a second opinion on this before you build it though....

box.jpg?t=1186950235

Share this post


Link to post
Share on other sites
what was the tuning?

 

if i remember correctly, it was around 32 or a little lower. this was a couple yrs ago.

Share this post


Link to post
Share on other sites
1.5 cubes tuned to 33hz with 30 square inches of port should be nice80

 

I got bored this afternoon, and decided to design this box. I used the sticky in this part of the forum on how to design a ported box. I went step by step with the instructions given....somehow i think my net volume is off, but i may be calculating it wrong.

 

Could someone help me out? box is designed to be 1.5 cubes @ 33 hz...port length should be 46.14"...sub displacement is .15 cubes....port displacement is 1.02 cubes...

 

1533hzzq6.jpg

 

thanks guys...

Share this post


Link to post
Share on other sites

bump....can someone please check and see how many cubes the sub will see, using the last posted image? i keep getting around 1.2 for some reason, it should be 1.5...

 

thanks

Share this post


Link to post
Share on other sites
if i did the math right, it looks like your sub will be in 1.09 cubes.

 

thanks for the reply...i didnt thank anyone was gonna help me out!!!

 

heres how i came up with my port lenth and box dimensions....

 

my answers are in parentheses, and highlighted in red

 

 

1. Figure desired NET volume, port area, and tuning. (1.5 net, 30.875, 33hz)

 

2. Write down max, or desired Width x Height x Depth. (32x11x?16?)

 

3. Pick the dimension of 2 sides you want, and leave the third side as a variable. (s) Multiply the two sides together and write this off to the side. (32x11=352)

4. Open WinISD, and pick an arbitrary driver. Continue to ported. (i used jl's 10w6)

 

5. Type in your desired box volume, this is the NET Volume, as well as desired tuning. (1.5 cubes)

 

6. Go to vent tab, click on the circle symbol to change it to a square. (this is for slot port). Type in desired port dimensions (for desired port area). It will give you the needed port length. Write this down.

(3.25 x 9.5 = port length of 46.13 with one flanged end, end correction factor)

 

7. This is where simple algebra comes in. Take the port width and add .75" to it for the port wall. Now find out the volume of the port. Do this by multiplying: (Width(+.75) * Height * Length) / 1728 | This is your port displacement. Write this down. (4x9.5x46.13/1728=1.014 port displacement)

 

8. Take your NET volume, add port displacement, add sub displacement, add any other displacements (bracing, etc.) This is you internal GROSS volume. This is how big the box needs to be internally for correct NET volume and tuning. Write this down.

(1.5 net + 1.014 port displacement + .15 sub displacement= 2.664 gross volume)

 

9. More Algebra. You will be solving the following algrebraic equation for (s), this will give you the internal dimension of the last side (the variable you chose.) Actually, here is the equation solved for (s).

 

Equation:

S = (GrossVolume * 1728) / (Product of remaining two sides)

S = (2.664 * 1728) / 352

S = 4603.392/352

S = 13.078 internal length of last side which is 14.578

so i made the box 32x11x14.6, and i put the port in using the length winisd gave me.

 

Is this correct or am i missing something???

Share this post


Link to post
Share on other sites

i refigured my math and ended up w/ the 1.2 cubes. what kinda power does your amp push? you may be fine with that box if you're gonna use enough power.

Share this post


Link to post
Share on other sites
i refigured my math and ended up w/ the 1.2 cubes. what kinda power does your amp push? you may be fine with that box if you're gonna use enough power.

 

its rated at 600 rms @ 4 ohms, 1100 rms @ 2 ohms, and 1400 rms @ 1 ohm....

 

i would think i have plenty of power for it....if i set my gains right, i should be ok... it will be wired at 2 ohms

Share this post


Link to post
Share on other sites
y use the zig-zag port? y not just an L shape?

 

i tried that....with the maximum dimensions i am working with, its kinda hard to get the port to go in an L shape. i tried numerous ways to make the port an L shape but I just cant seem to get it to work like i want it to...thanks for the input

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×