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Sub vent port on side or top wall?

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mramstedt View Drop Down
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    Posted: 04 December 2016 at 7:40pm
Hi,

I have a shallow sub and would need to put the vent port on either side or top wall, see picture.



Is this possible or are there any limitations?

Thanks,

Marko


Edited by mramstedt - 04 December 2016 at 7:41pm
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concept-10 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote concept-10 Quote  Post ReplyReply Direct Link To This Post Posted: 04 December 2016 at 7:49pm
That's perfectly ok.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote ceharden Quote  Post ReplyReply Direct Link To This Post Posted: 04 December 2016 at 8:00pm
Just make sure you keep the internal end of the port away from the opposite panel, otherwise it will affect the tuning and potentially cause noise due to turbulance in the airflow.  I understand they're only sketches above but the ports there are too close to the bottom/left hand panels.
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mramstedt View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mramstedt Quote  Post ReplyReply Direct Link To This Post Posted: 04 December 2016 at 8:21pm
Hi, what would you suggest as minimum clearance (D of port)?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote bee Quote  Post ReplyReply Direct Link To This Post Posted: 04 December 2016 at 10:31pm
if its just for a single box its fine, but should you want to add more boxes next to it or ontop of It, then its a no...
https://www.elements-audio.com
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Post Options Post Options   Thanks (0) Thanks(0)   Quote knet94 Quote  Post ReplyReply Direct Link To This Post Posted: 04 December 2016 at 10:39pm
Rear porting a la some of Tony Wilkes cabs would seem a better solution.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ceharden Quote  Post ReplyReply Direct Link To This Post Posted: 04 December 2016 at 11:21pm
Originally posted by mramstedt mramstedt wrote:

Hi, what would you suggest as minimum clearance (D of port)?

The absolute minimum clearance should be the diameter of the port but that will most likely result in the effective length of the port being increased because the volume of air between the end of the port and the panel will behave as if it's part of the port.  Personally I would go for at least 1.5x the port diameter if not more.  At that distance you will still get some lengthening of the port so check the tuning and shorten if necessary.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote _djk_ Quote  Post ReplyReply Direct Link To This Post Posted: 05 December 2016 at 11:59pm
JBL B460 subwoofer.
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