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Old 3rd June 2003, 12:40 PM   #1
Tony.ca is offline Tony.ca  Canada
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Question how to vent the port dia?

Hi guys,

Just wanted to know if the design of a vented enclousure asks for a 4" dia and 10" length ,can I split them into two i.e two ports of 2" in dia and 5" in length. Will this make any difference in the sound quality.


Thanx,



Tony
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Old 3rd June 2003, 01:03 PM   #2
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Hi there Neighbor!!!....Tony you could get away with doing that....my only concern is that you might get a little port noise with that small of a diameter...I would personally use 2 3inch ports and leave them a little long and then tune the box after by shortening them

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Old 3rd June 2003, 01:54 PM   #3
Tony.ca is offline Tony.ca  Canada
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Thanks jow will do that, and one more thing if the put the ports at the back of the box, will it make any difference with the sound quality. I am using this sub for the car and there is not much of space in the front of the box to accomodate the ports . The size is 13 1/2" X 14 1/2". Any suggestions as to where to mount the ports? Overall dimensions are 17" D X 32" W X 15" H. Using for a dual JBL 12" drivers.

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Tony
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Old 3rd June 2003, 03:18 PM   #4
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I would place the ports on top.......I hope your going to face the drivers to the back of the car, you will gain a few Db there

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Old 3rd June 2003, 05:49 PM   #5
Tony.ca is offline Tony.ca  Canada
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hi joe
will put the ports on top,but don't u think it is too close to the top car panel if this is ok anyway i will go ahead with the top ports.

thanks

tony.
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Old 3rd June 2003, 05:54 PM   #6
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measure the clearance your going to have....you want atleast 2 inches minimum
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Old 4th June 2003, 01:10 AM   #7
Tony.ca is offline Tony.ca  Canada
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joe the dirt

I don't have 2" clearance on top can I put it right behind the box and face the port inside the car. And also will it matter it I put the ports horizontal or vertical,If I put it vertical right behind the driver will it affect the sound quality.


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