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"series" notch filter with Khorn - why am I not seeing more effect?

as crappy as my vision works, plus the little Klipsch crossover barrier strip, there may not be good connections.

I cobbled up approximately North Readings values and saw only about -25dB effect @146Hz. Their filter = series 12.9mH - - 156uF--3.8R and those put across the woofer. Klipsch's Type A network inductor is 2.5mH - maybe 0.4 ohm dcr.

One difference may be North Reading used a different lowpass filter - perhaps 4mH/100uF (will have to check)

North Reading's graph

here's a rough AJ-sim. imo - looks similar in effect What am I missing besides the brain needed to understand ?


Karlson Evangelist


Edits: 09/26/16 09/27/16
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Topic - "series" notch filter with Khorn - why am I not seeing more effect? - freddyi 22:03:53 09/26/16 (16)
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