It calculates components values of an high pass filter for a
passive audio crossovers.
Useful for two-way (or more) speakers (loudspeakers) or separated supertweeter, high pass filter is the way which supply the transducer for the reproduction of high frequencies called high or treble (tweeter or supertweeter).
F - Cutoff frequency:
Nominal impedance of the transducer:
It sees also : Common information for components of a cross-over.