In the meantime, I'd like to build a passive hi pass filter using the utility on
Butterworth Tee LC High Pass Filter Calculator -which calculates cap/inductor ratings for given frequency. Incidentally, why does every text book example of high/low pass show Resistor/Cap configuration, when in reality inductor/cap combinations are the only thing I've gotten to work? The RC combinations I've tried simply attenuate entire audio signal. That being stated, the above reference site has a field 'number or components'. This seems arbitrary; what would be the optimal number of components for a 17KHz hi pass? When I built the passive low pass filter(
https://www.electro-tech-online.com/attachments/200_hz_lowpass-jpg.3678/), the schematic called for 4 caps and 3 inductors. Given the proper values, could I simply reverse the order for hi pass?