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20th April 2009, 11:15 AM
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#1 |
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diyAudio Member
Join Date: Jan 2006
Location: Missouri City, Texas
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Active Filter for 6th order Vented Box
Hi All,
I need a circuit for an active filter to use witht my vented box system to make it 6th order. It would be a 2nd order High pass filter with a Q of 2. Preferably adjustable. Patrick Snyder of SpeakerLab fame did one called the 575 based on the RC4134 opamp. I am looking for a more modern version of this circuit. Can anyone point me in the right direction? bwhitejr |
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20th April 2009, 05:28 PM
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#2 |
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diyAudio Member
Join Date: May 2005
Location: Californication
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see 3.2.1 in link PDF http://www.delta-audio.com/Active_Fi...our_manual.pdf
Sallen key topology with buffered Q and is adjustable independant of Fc.
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