Thinking about building a box...
#1
Senior Member
True Car Nut
Thread Starter
Join Date: Mar 2010
Location: Eaton Rapids MI
Posts: 2,964
Likes: 0
Received 0 Likes
on
0 Posts
Thinking about building a box...
But i change equipment so often... i dont know if itll be worth it.
But anyhow I was thinking about building a ported enclosure for my 2 15" JL W0'*
I think i like these dimensions
36 inches wide X 30 inches deep X 17 inches tall
with port dimensions of
3 inches tall X 34 inches wide X 22 inches deep
Which will give me 8.82 cu feet total. And a tuned frequency of 36.34
Should work about perfect for these subs
I wonder if i can cut all the pieces out of only two pieces of 3/4" 4x8 sheets of MDF?
Let me know what u think.
But anyhow I was thinking about building a ported enclosure for my 2 15" JL W0'*
I think i like these dimensions
36 inches wide X 30 inches deep X 17 inches tall
with port dimensions of
3 inches tall X 34 inches wide X 22 inches deep
Which will give me 8.82 cu feet total. And a tuned frequency of 36.34
Should work about perfect for these subs
I wonder if i can cut all the pieces out of only two pieces of 3/4" 4x8 sheets of MDF?
Let me know what u think.
#2
Senior Member
True Car Nut
Join Date: Jun 2007
Location: New Lenox, IL
Posts: 2,478
Likes: 0
Received 0 Likes
on
0 Posts
But i change equipment so often... i dont know if itll be worth it.
But anyhow I was thinking about building a ported enclosure for my 2 15" JL W0'*
I think i like these dimensions
36 inches wide X 30 inches deep X 17 inches tall
with port dimensions of
3 inches tall X 34 inches wide X 22 inches deep
Which will give me 8.82 cu feet total. And a tuned frequency of 36.34
Should work about perfect for these subs
I wonder if i can cut all the pieces out of only two pieces of 3/4" 4x8 sheets of MDF?
Let me know what u think.
But anyhow I was thinking about building a ported enclosure for my 2 15" JL W0'*
I think i like these dimensions
36 inches wide X 30 inches deep X 17 inches tall
with port dimensions of
3 inches tall X 34 inches wide X 22 inches deep
Which will give me 8.82 cu feet total. And a tuned frequency of 36.34
Should work about perfect for these subs
I wonder if i can cut all the pieces out of only two pieces of 3/4" 4x8 sheets of MDF?
Let me know what u think.
#4
Senior Member
True Car Nut
Thread Starter
Join Date: Mar 2010
Location: Eaton Rapids MI
Posts: 2,964
Likes: 0
Received 0 Likes
on
0 Posts
I just did a little measuring in my trunk.. I got 17" inches from the trunk floor to the bottom of the 6x9'* (also same height as current box) Width is normal.. and yes the box is deep at 30 inches but i want a HO box
#5
Senior Member
True Car Nut
Join Date: Jun 2007
Location: New Lenox, IL
Posts: 2,478
Likes: 0
Received 0 Likes
on
0 Posts
Well, figure out how big a sheet of MDF is. The last calculator I used also included the size of the panels you would need to cut, so you can figure it out that way.
#7
Senior Member
True Car Nut
Join Date: Jun 2007
Location: New Lenox, IL
Posts: 2,478
Likes: 0
Received 0 Likes
on
0 Posts
They might have some scrap MDF where you buy it that you might be able to use instead of buying an entire 3rd sheet. That, or you can scale down the size of your box to fit within 2 sheets of MDF.
#8
Senior Member
Posts like a Turbo
Join Date: Jul 2010
Location: Sacramento, CA.
Posts: 326
Likes: 0
Received 0 Likes
on
0 Posts
But anyhow I was thinking about building a ported enclosure for my 2 15" JL W0'*
I think i like these dimensions
36 inches wide X 30 inches deep X 17 inches tall
with port dimensions of
3 inches tall X 34 inches wide X 22 inches deep
Which will give me 8.82 cu feet total. And a tuned frequency of 36.34
Should work about perfect for these subs
Let me know what u think.
I think i like these dimensions
36 inches wide X 30 inches deep X 17 inches tall
with port dimensions of
3 inches tall X 34 inches wide X 22 inches deep
Which will give me 8.82 cu feet total. And a tuned frequency of 36.34
Should work about perfect for these subs
Let me know what u think.
In order to give you any real help or suggestions I'd need to know what type of box you're building and it'* orientation, how much power you're going to be giving the subs and the sub specs. As for box, it'* obvious it'* a ported box so that'* not the answer i'm looking for. I mean are you doing a standard ported box w/subs and port on the baffle? Are the subs going to be firing up with the port coming out the bottom of the box and is that port firing out the back or the front?
When building a box that big and with subs that big, it would be a good idea to add some bracing to the box so it doesn't flex, that'* going to take up internal volume as well as the subs themselves so obviously that'* going to change your net volume and tuning. Also, you have to consider how many baffles you're going to have because that will effect your measurements and volume too. Double baffles are good for two things, being able to flush mount your subs and strengthening the baffle so it doesn't flex.
You also have to be aware of how many "common port walls" your box will have, that also affects tuning and volume. You have a long way to go before you're ready to start cutting and building. You really need to get sub specs so you can find out their displacement, calculate bracing displacement, rethink your specs. Let me know if you have any questions though, I got you
#9
Senior Member
True Car Nut
Thread Starter
Join Date: Mar 2010
Location: Eaton Rapids MI
Posts: 2,964
Likes: 0
Received 0 Likes
on
0 Posts
the subs will be firing back, toward my taillights. and the port will be a slot port on the same face as the subs, right above the subs actually.
I made the box a little large to compensate for sub volume, ect. I was going to add a couple small braces but not to concerned since subs r only 500w max and only receiving 150w RMS each. its not a high power system. Just want to get some air flowing, and a correct tune.
I made the box a little large to compensate for sub volume, ect. I was going to add a couple small braces but not to concerned since subs r only 500w max and only receiving 150w RMS each. its not a high power system. Just want to get some air flowing, and a correct tune.
#10
Senior Member
True Car Nut
Thread Starter
Join Date: Mar 2010
Location: Eaton Rapids MI
Posts: 2,964
Likes: 0
Received 0 Likes
on
0 Posts
I should of built a box for my last system. My box was janky but still ungodly loud. 2 12" HX2'* and 2 12" P3'* with a 2000w Alpine amp. Subs firing up. but box was tooo small and sealed