can someone please help me design an enclosure for my subwoofer - diyAudio
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Old 9th July 2012, 03:28 PM   #1
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Default can someone please help me design an enclosure for my subwoofer

Hi,
i am designing a 5.1 hometheater system.i have designed my amplifiers and i am using lm3886 parellel with dc servo for my sub.

My knowledge in designing enclosure for sub is very less....so please help me attain the best performance
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Old 9th July 2012, 03:32 PM   #2
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Quote:
Originally Posted by vishnupg View Post
Hi,
i am designing a 5.1 hometheater system.i have designed my amplifiers and i am using lm3886 parellel with dc servo for my sub.

My knowledge in designing enclosure for sub is very less....so please help me attain the best performance
i think vented design will be good

i am using the following woofer Iwai Electronics Pvt. Ltd.
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Old 9th July 2012, 07:06 PM   #3
tb46 is offline tb46  United States
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Hi vishnupg,

You are providing no help as to your application, enclosure size, room size, placement, etc.

Anyway, to get things started: Hornresp is a free design software that you might find helpfull:
Hornresp
After downloading and installing, please, read through the help file, it is quite informative.

The speaker you are referencing does not look like much of a subwoofer, and I would recommend you measure the T/S parameters yourself (in addition to what you have in the specification sheet) before you spend a lot of time on designing, or cutting wood:
Measuring Loudspeaker Driver Parameters

Regards,
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Old 9th July 2012, 08:21 PM   #4
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by vishnupg View Post
i think vented design will be good

i am using the following woofer Iwai Electronics Pvt. Ltd.
Hi vishnupg,

Submitting a suggestion that I think would suit a LM3886 amp:

b
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Old 11th July 2012, 02:10 PM   #5
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thankyou very much guys......i have started with enclosure
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Old 12th July 2012, 03:53 AM   #6
GM is online now GM  United States
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FWIW, some measured specs:

GM
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File Type: gif Iwai 8' subwoofer 4 ohm [measured].gif (14.3 KB, 173 views)
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Old 12th July 2012, 01:37 PM   #7
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by GM View Post
FWIW, some measured specs:

GM
Hi GM,

Good news!
I plugged your numbers into my previously submitted simulation and found the measured T/S to be slightly improving the suggestion despite the new driver Sd is larger than the advertised..

The driver would still fit the enclosure with CSA= 224cm^2 as long as the internal width is close to 21 cm.


b
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File Type: jpg IWAI-8_T-QWP-meas.TS.jpg (468.6 KB, 157 views)
File Type: jpg IWAI-8_T-QWP-meas-New.JPG (240.2 KB, 149 views)
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Old 12th July 2012, 02:12 PM   #8
GM is online now GM  United States
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GM
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Old 15th July 2012, 01:45 PM   #9
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The driver is good one for the price right??
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Old 15th July 2012, 02:45 PM   #10
bjorno is offline bjorno  Sweden
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Quote:
Originally Posted by vishnupg View Post
The driver is good one for the price right??
Who knows the price but you? You're the one who suggested a driver from India. Mail the driver manufactures and post to this thread.

b
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