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Port Questions

 

Silver Member
Username: Silvermopar

Nebraska

Post Number: 194
Registered: Aug-06
In an effort to work with a smaller ported box, could you save on space/displacement by using a round port instead of a typical slot port? And it seems that the smaller your port's diamater the shorter it needs to be to stay at a certin frequency, when does it become too small? Can someone explain porting to me a little bit? I've looked around and have yet to really understand it.
 

Gold Member
Username: Southernrebel

Monroe, Louisiana Team Audible...

Post Number: 8210
Registered: Mar-04
Yes, you can use round or flared ports to save volume in the enclosure. Also, flared ports will reduce turbulence and you can use less port area.

For example, Say you have a 1.5cuft net box and you want to used around a 20sq inch slot vent. That will take up quite a bit of space in the box. But in most cases, depending on power, a single 4" port will do the trick and not have port noise. It will both be shorter and have a smaller cross-section area. Meaning you save on port displacement.
 

Silver Member
Username: Silvermopar

Nebraska

Post Number: 195
Registered: Aug-06
Would it be possible to port a 10" woofer with something as simple and cheep as 4" PVC cut to the correct length?
 

Diamond Member
Username: Wingmanalive

Www.stainles... .ecrater.com

Post Number: 23348
Registered: Jun-06
Yes. Even the heavy duty cardboard rolls you find at carpet stores will do the trick.
 

Silver Member
Username: Silvermopar

Nebraska

Post Number: 196
Registered: Aug-06
This leads me to ask... why then do folks use the slot ports? Just because they look cool?
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