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Subtractive crossovers is where I got the idea from. The guy from ESP (https://sound-au.com/articles/derived-xovers.htm#outro) says a phase-corrected subtractive crossover (for a 24dB/octave high and low pass filter network) is a waste of components. Conventional HP and LP networks yielded the same, if not better, he says -- provided components are matched meticulously in either case, I assume.Anyway, in my case, I have almost a dozen different RC high-pass and active band-pass filters to choose from (one at a time). A conventional approach would mean having to (re-)build those 11 filters in 'inverted' configuration (cos can't easily flip positions of that many R and C components around) -- whereas the subtractive approach promised the need of only one extra stem (AUX line), as all the filters are first-order only anyway.Useful? I don't know yet
Subtractive crossovers is where I got the idea from. The guy from ESP (https://sound-au.com/articles/derived-xovers.htm#outro) says a phase-corrected subtractive crossover (for a 24dB/octave high and low pass filter network) is a waste of components. Conventional HP and LP networks yielded the same, if not better, he says -- provided components are matched meticulously in either case, I assume.
Anyway, in my case, I have almost a dozen different RC high-pass and active band-pass filters to choose from (one at a time). A conventional approach would mean having to (re-)build those 11 filters in 'inverted' configuration (cos can't easily flip positions of that many R and C components around) -- whereas the subtractive approach promised the need of only one extra stem (AUX line), as all the filters are first-order only anyway.
Useful? I don't know yet
