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Which filter topology do you prefer?
Which filter topology do you prefer?
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Old 4th July 2012, 01:26 PM   #1
jackinnj is offline jackinnj  United States
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Which filter topology do you prefer?
Default Which filter topology do you prefer?

Sallen and Key or MultiFeedBack?
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Old 4th July 2012, 01:48 PM   #2
wintermute is offline wintermute  Australia
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Which filter topology do you prefer?
Neither but I still haven't done the final implementation of my "alternate" which may yet prove to be a flop...

You should probably throw in state variable as well... That was the one that I was thinking about before I got all esoteric.

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Old 4th July 2012, 08:15 PM   #3
djk is offline djk
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I find the Sallen and Key to sound much better than the typical subtractive type crossover (where multiple low-pass filters are subtracted from the input to derive a high-pass output).

If you think about it; all the noise, distortion, and phase shift show up in the high-pass of the subtractive type. The Sallen and Key can sound quite a bit better, even with cheaper opamps.
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