not baffle step.
3,200hz = .125mFd + 20uF + maybe 6-12ohms (all three in parallel), then series the network with the driver.
I found a post over at audioasylum.com by Tomservo.
I crunched the numbers and sure enough, it is 3,200hz.
High Efficiency Speaker Asylum
Hi Norman, I assume that .125mFd was actually 0.125mH :)
This wikipedia article I found invaluable for doing notch filters. RLC circuit - Wikipedia, the free encyclopedia
something that is useful is that you can play with the values of the C and L to get different Q's but still keep the same centre frequency.
lol, yup. mH............ :nod:
Found a Z-plot by freddi (betsyk ?).
a 9ohm resistor should knock peak down by 6db (you can see a slight wrinkle there).
You are right on the Q of the notch. If I remember, the values get really large (expensive) as the notch gets narrower.
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