On Monday April 14, Melbourne Section members and guests gathered at the Australian College of the Arts in South Melbourne to hear Bohdan Raczynski of Bodzio Software describe the processes involved in implementing a phase linear monitor loudspeaker system with flat axial response using his company's Ultimate Equalizer software. Bohdan first touched lightly on passive crossover and corrective circuit design, the kind of typical CAD tools used in their design, and enumerated some limitations of this approach. He concluded that designing passive crossovers involves a bunch of compromises and asked (rhetorically) "Can we do better?" He also noted that certain topologies can only be implemented using DSP.
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