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Old 4th July 2006, 05:52 PM   #1
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Default Baffle step compensation formula?

Hi guys,

I recently built a couple of speakers using tang band 871's (3inch) and I have read about adding a baffle step filter to them, but I can't seem to find a simple formula for working out the filter values or a schematic.
My speakers are 6 and 3/16" wide and 11 and 1/4" tall, the driver is mounted in the center at the top and I have a port at the bottom.
Could anyone tell me what kind of baffle step filter I need or the values? Or perhaps point me to a website with some reasonably easy formulas to work out one?

thanks!

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Old 4th July 2006, 09:47 PM   #2
ttan98 is offline ttan98  Australia
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try this page:


http://www.t-linespeakers.org/tech/b...intro-bds.html
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Old 8th July 2006, 06:38 AM   #3
knorke is offline knorke  Germany
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You should try The Edge .
It's a small program that let you simulate the effects of
baffle step and also suggests a suitable correction.
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Old 8th July 2006, 07:54 AM   #4
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Even easier -the Excel file here. http://www.quarter-wave.com/General/..._Articles.html And Martin doesn't put up anything that isn't worth having.
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Old 8th July 2006, 10:50 AM   #5
Svein_B is offline Svein_B  Norway
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BSC / Notch filter for Tangband W3-871
at Zaph Audio: http://www.zaphaudio.com/archives.html
File: http://www.zaphaudio.com/archives-18.zip

Filters with measured results for this driver!

Svein.
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