how far away from the enclosure wall should my port be? - diyAudio
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Old 15th April 2002, 07:03 AM   #1
diyAudio Member
Join Date: Apr 2002
Location: CA
Exclamation how far away from the enclosure wall should my port be?

i have made sevral posts in the past few weeks and all have revieled very useful information......

well here is my question for the day......

i am constructing my first subwoofer.....
it is a vented enclosure.....the vent being 3inches in diamater......
the port has to be farly long to tune the box to 25hz........
how much room should i have between the end of the port and the enclosure wall?

should i use a elbo?

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Old 15th April 2002, 09:35 AM   #2
Keld is offline Keld  Sweden
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Join Date: Jan 2002
Location: Borås, Sweden, Tellus
quote from
"Where should I put the ports?
Ports should be placed at least one diameter away from any adjacent walls. If this is not possible to do this, the tuning frequency for a given port length will be lower than that predicted by the equations, and this may adversely affect the results."

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