In the last step I built the preliminary crossover and auditioned it extensively, and used these listening tests for the final tailoring of loudspeaker performance. The software saves many hours of experimentation, producing a preliminary design that gets you quickly into the ballpark, but the designer must pick the right crossover topology and guide the optimization process to a reasonable result. This is where the “art” of crossover design with optimization software comes in. They cannot decide on an optimum crossover topology and they do not know which components should be optimized and which should be left alone. Lest you think that this process is automatic and that the software does all the work, be warned that these optimization programs are quite dumb. I then enter this data into one of the many crossover optimization programs I have to develop a preliminary crossover design. This process is described in detail in Chapter 7 of reference. The measurements include acoustic frequency and phase response, acoustic phase center and electrical impedance. 1A and made acoustic and electrical measurements on them. First, I placed all drivers in the prototype enclosure of Fig. Crossover design for me is a three-step process. With the line optimally damped, my efforts now turned to the design of the crossover.
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