Building a cabnet for a pair of JBL 2214's - diyAudio
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Old 15th September 2012, 04:05 PM   #1
jayhue is offline jayhue  United States
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Default Building a cabnet for a pair of JBL 2214's

Starting a project of bringing my JBL 12" 2214H's back to life in my home system. What size and type of cabinet to build? Of course, my goal is going as low as I can go. Room size, is not a factor they can be big if they need to be. Using a receiver a Pioneer DSX-914 at 110 watts. Thinking to myself, "just go to the experts for this". These are just my numbers, that I have. Thanks for the help.

JBL 2214H PMAX=200 RE=5.6
FS=23 XMAX=.26 LE=1.3
QTS=.24 DIA=10.2
VAS=7.9 QMS=10.5
EFF=1.1% QES=.25
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Old 16th September 2012, 01:05 AM   #2
bjorno is offline bjorno  Sweden
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Hi,

Here is a suggestion:

b
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File Type: jpg JBL2214H.JPG (876.6 KB, 214 views)
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Old 16th September 2012, 03:04 AM   #3
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That looks amazing. What are the actual dimensions for the box and ports?
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Old 16th September 2012, 11:51 PM   #4
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by FairfaxStu View Post
That looks amazing. What are the actual dimensions for the box and ports?
Hi jayhue,

Have a look at the submitted picture and you will find a few of the dimensions needed. I didn't exactly know the driver frame width (calculated with 31 cm) or the needed depth for magnet clearance when I made the simulation.

I think if you start with an internal box height of( L23 + 2 x 31 cm+ 1.8cm(Choose the baffle thickness = 2 x 1.8cm) + the internal box width = 31 cm and a L23= 223.25 cm:

The total L would be slightly lower than 450 cm.( When damping material is added to the box: The effective length of the air-ways are 'virtual' longer than if physically measured.)

b
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File Type: jpg 2xJBL-2214H-8_OD-QWP_OD-T-QWP.JPG (784.0 KB, 173 views)

Last edited by bjorno; 17th September 2012 at 12:07 AM.
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Old 17th September 2012, 01:53 AM   #5
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Quote:
Originally Posted by bjorno View Post
I think if you start with an internal box height of( L23 + 2 x 31 cm+ 1.8cm(Choose the baffle thickness = 2 x 1.8cm) + the internal box width = 31 cm and a L23= 223.25 cm:
b
Woa, you just blew my head off so please educate me. What is L23? If Jay can provide the external dimensions including mounting hole size and depth we should be able to bang this one out.

-Stu
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Old 17th September 2012, 02:06 PM   #6
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by FairfaxStu View Post
Woa, you just blew my head off so please educate me. What is L23? If Jay can provide the external dimensions including mounting hole size and depth we should be able to bang this one out.

-Stu
Hi Stu,

You will find L23 to be the 'in enclosure' the inter driver section distance between the rear to the front side if you download and enter the numbers given into the free Hornresp program.

b
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Old 18th September 2012, 02:37 AM   #7
jayhue is offline jayhue  United States
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I didn't exactly know the driver frame width (calculated with 31 cm) or the needed depth for magnet clearance when I made the simulation.

Driver dimensions: Full Dia. 31.11cm, Inside Dia. 29.84cm, Depth 14.60cm
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Old 23rd September 2012, 01:01 AM   #8
jayhue is offline jayhue  United States
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The new hornresp program has different input par. than the one showing. What is this type of enclosure called. The internal length of the baffles? Spacing of the baffles inside the enclosure. Is there a page for the wood cuts? I can build this with just a little more help. Thanks. jayhue
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Old 27th September 2012, 09:31 PM   #9
jayhue is offline jayhue  United States
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Default bump

Just a few more measurements and I can start building. Length of the baffles? Dying to start this build. Please, Please, Please. thanks.
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Old 28th September 2012, 12:42 AM   #10
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by jayhue View Post
Just a few more measurements and I can start building. Length of the baffles? Dying to start this build. Please, Please, Please. thanks.
Hi jayhue,

Sorry for being late.
For the moment: Here's a revised picture with some added dimensions to study:

b
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File Type: jpg JBL2214H-rev.JPG (963.1 KB, 88 views)

Last edited by bjorno; 28th September 2012 at 12:54 AM.
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