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View Full Version : How many bends in a port is to many?



NoLoud4U
02-26-2012, 05:29 PM
Is 3 OK?

NoLoud4U
02-26-2012, 06:34 PM
Bump for a easy question

wenn_du_weinst
02-26-2012, 06:35 PM
if you have constant width and ample port area then you will be fine with 50 bends.

Bettr n' Revrse
02-26-2012, 06:38 PM
Yep

NoLoud4U
02-26-2012, 06:39 PM
Thanks guys.. My headache is over

wenn_du_weinst
02-26-2012, 06:40 PM
http://i16.photobucket.com/albums/b7/mowerman_/Fostex%20FE126%20Ron%20Horn/IMG_0144.jpg
see :)

NoLoud4U
02-26-2012, 06:45 PM
http://i16.photobucket.com/albums/b7/mowerman_/Fostex%20FE126%20Ron%20Horn/IMG_0144.jpg
see :)

Ive seen a lot but that dont mean it worked.lol

wenn_du_weinst
02-26-2012, 06:47 PM
that worked it's a horn, just trying to show a design with multiple bends with 45's that make sure the port stays constant in the bends.

kmanian
02-26-2012, 08:32 PM
if you have constant width and ample port area then you will be fine with 50 bends.

I disagree, for all reasonable installations 360 degrees of bends are pretty much the max before you run into issues.

0.02

NoLoud4U
02-26-2012, 08:35 PM
Ill be going across the bottom, up the back, and out the back.

kmanian
02-26-2012, 08:37 PM
I dont see any issues there

Moble Enclosurs
02-26-2012, 10:45 PM
3 can be ok, but may not always fit the application. The good news is, with 3 bends, the amount of response change that occurs can be inaudible if the bends are acute. The main thing to watch for is out of phase response band....which is why many bends are a concern. The more you use, the more resonances can occur in the response, and the less smooth the output and phase can become more sensitive.
So, minimizing the amount of bends is usually a great idea unless you know how to personally account for them in the design, which I can guarantee not many people in the field can do accurately.