Audio frequency crossover network for improving sound reproduction, combines high and low pass filters in arrangement capable of passive, active or digital implementation

摘要

The transfer function of the low pass filter is a discontinuous, rational function with a second order constant denominator polynomial and a pole quality of unity. The transfer function of the high pass filter is a discontinuous rational function with a denominator polynomial of second order, and a pole quality 0.8-1.2. The numerator polynomial comprises the quadratic term p2, where p=j o + s is the complex frequency variable. The pole frequencies of the denominator of the transmission functions of the high and low pass filters are equal.