Investigation into 4th-order Bessel active crossovers produces interesting results. Implementing 4th-order Bessel crossovers required development of several new approaches. The classic Bessel equations do not work well for crossover use. Adapting Linkwitz-Riley theory shows the way to a better Bessel. Development of new Bessel-derived transfer functions eliminate several faults of the classic approach. The areas investigated include roll-off rates, summed magnitude responses, phase shifts, and group delays. Also investigated is direct state-variable implementation of 4th-order Bessel functions. A summary of comparison results with the Linkwitz-Riley case concludes the study.
https://www.aes.org/e-lib/browse.cfm?elib=5045
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.
Learn more about the AES E-Library
Start a discussion about this paper!