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matejS 13th May 2008 07:02 PM

Open-baffle baffle length

I've found open-baffle design very interesting. I plan to build an open-baffle speaker.
I've done some research on it and it confuses me :xeye:

Linkwitz states that baffle length must be less than wavelength: L < lambda. Right? Why? Not to get cancellation? And if it's lambda/2 you get addition?

If I assume L < lambda, the best L is 0. Why not use no baffle at all? We all know how nature works and nothing is for free. What "anti-condition" am I missing here?


LineArray 13th May 2008 09:30 PM

Maybe You would like some further reading on OB:

In German:

A comprehensive Introduction to OB including
practical examples.
You will find interesting links there see below:

In English:

- link to "Open Baffle Theory"

Very interesting Articles by Martin King

This is a simulation program, it works with
idealized drivers, but you can experimentally
change baffle shapes and sizes and watch
the impact on the frequency response

Cheers Oliver

bentoronto 21st September 2010 05:49 PM

Thought I'd try an OB sub-woofer. This is an effort to push the limits... not sure it succeeded well enough.

See this long post.

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