- Published in issue 7/1995 on page 101
Linkwitz-Riley cross-over network
The Linkwitz-Riley crossover network is known for its homogenous performance and constant amplitude. The transfer is identical to that of two 2nd-order Butterworth filters in series. The Linkwitz-Riley filter is an example of an active crossover network for a two-way loudspeaker system whose crossover frequency is 1 kHz. It can be built around one quad op amp for a two-way of three-way speaker system and can be converted to provide alternative crossover frequencies by proportional adaptation of the resistors.