ABSTRACT
The use of a second-order crossover promises relief from the lobing, tilting, and time alignment criticality of first-order crossovers, because the filter slopes are now twice as steep at 12 dB/octave. A very large number of passive crossovers are second-order, because they are still relatively simple, and this simplicity is very welcome as it reduces power losses and cuts the total cost of the large crossover components required. Neither of these factors applies to active crossovers; the extra power consumption and the extra cost of making a fourth-order crossover rather than a second-order crossover are very small.
