Journal Article
All-Pass Crossover Systems
Journal of the Audio Engineering Society · Volume 28 · Issue 9 · pp. 575–584 · September 1980
Abstract
A complete series of all-pass crossover functions is derived. These functions are useful in the design of crossover systems for audio equipment such as loudspeakers and signal processors. The series include the known all-pass crossover functions as well as many new designs. A common property of functions in the series is that their singularities are positioned upon a circle in the complex-frequency plane. Such functions are particularly suitable for audio applications. Response characteristics are given for all-pass crossover systems up to ninth order, and the importance of a systems approach to crossover-network design is emphasized.
