15-Oct-2017, 18:42
(15-Oct-2017, 18:28)Waiski Wrote: It is Bessel crossover. You can read more from here..
http://www.rane.com/note147.html
Are you sure that's what is also used for high-pass?
Bessel is more commonly used for low-pass.
Also, Bessel can be implemented using IIR or FIR (see: https://www.arc.id.au/FilterDesign.html) so it doesn't really answer the question.