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Old 18th March 2010, 05:12 AM   #1
juxta is offline juxta  Australia
diyAudio Member
 
Join Date: Nov 2009
Location: Tasmania
Default winisd help please

Hey I'm trying to model a sub in winisd and I'm not sure how many t/s parameters I can get away with. I have this information and no real way to find anymore(it was hard enough getting this much)

fjl-1211 Jonah Lomu Woofer

* Magnet Structure 300 Oz
* Power Handling 1300 Watts 650w rms
* Voice Coil 3" Black Alloy SVCImpedence (per coil) 4 Ohms
* Free Space Resonance (Fs) 28Hz
* Efficiency 89db
* Frequency Response 21Hz to 1.2kHz
* Mounting Diameter (mm) 11.22"/285mm
* Mounting Depth (mm) 6.49"/165mm


FS - 26 hz
QMS - 3.717
Vas - 107.1 l
Xmax - 13mm one way
Qes - .35
Qts - .322
Sens - 89 1-W

Overall Dia - 319mm
Cut Dia - 285mm
Depth - 165mm



DRIVER:
- 12-inch High Rigidity
Non-Pressed Paper Cone
- High Excursion Surround
- Woven Fabian Leads
- Die-Cast Aluminum Basket
POWER HANDLING:
- 650W RMS
- 1300W Max
FREQUENCY RESPONSE:
- 22 - 1,200 Hz
VOICE COIL:
- Dual 3-inch Black Alloy
- 4-Ohm + 4-Ohm Impedence
MAGNET:
- 325 oz.
SENSITIVITY:
- 92.1 dB


So far I've input the
qts
vas
fs
xmax
qms
qes

Is there more I can get from the info I have or can i get away with just this??

Any help would be great
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Old 18th March 2010, 09:37 AM   #2
juxta is offline juxta  Australia
diyAudio Member
 
Join Date: Nov 2009
Location: Tasmania
Default Anyhow

Well I just ran what I had and it came up with a volume of 50.9 inches and a tuning freq of 32.74. This is for a ported enclosure. Does that sound right??

This is the car(91 Subaru Liberty wagon) and the driver(JL Jonah Lonu 12") I want to use, and the only graphs winisd supplied.
Attached Images
File Type: bmp JL SUB BOX.bmp (181.2 KB, 8 views)
File Type: jpg DSCF4147.JPG (604.9 KB, 39 views)
File Type: jpg DSCF4148.JPG (607.4 KB, 39 views)
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Old 28th March 2010, 11:24 AM   #3
form109 is offline form109  United States
diyAudio Member
 
Join Date: Nov 2009
Location: Tyler,Texas
Quote:
Originally Posted by juxta View Post
Well I just ran what I had and it came up with a volume of 50.9 inches and a tuning freq of 32.74. This is for a ported enclosure. Does that sound right??

This is the car(91 Subaru Liberty wagon) and the driver(JL Jonah Lonu 12") I want to use, and the only graphs winisd supplied.
Nice Looking Driver.....box sounds Right...i Absolutely cant say for sure..since i myself havent even Figured out how to Use winISD.
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Old 28th March 2010, 05:24 PM   #4
spooney is offline spooney  United States
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Join Date: Dec 2006
That should be enough parameters to get an accurate box design out of win isd. Is that 50.9 cubic inches? That is no way near large enough.
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Old 28th March 2010, 05:31 PM   #5
spooney is offline spooney  United States
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Join Date: Dec 2006
okay just ran your numbers. You must have had 50.9 liters and not cubic inches. 50.9 liters is about right. The numbers given by win isd are only suggestions based on a set of calculations. You can tweak the dimensions and tuning based on what you like. I find that for most 12 inch subs that like ported enclosures 2 cubic feet(or 56.6 liters) and a tuning of 35 hz works well. Your sub isn't a JL by the way. It is a Fusion Jonah Lomu series driver.

Last edited by spooney; 28th March 2010 at 05:35 PM.
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