As one who endeavors to sell capacitors to perhaps the forty or so principal speaker manufacturers in N. America, I've reached the conclusion that the majority of designers focus on drivers, cabinets, and crossover design, with the quality of crossover piece parts a distant fourth in priority. Most OEMs source crossover piece parts out of habit or marginal cost considerations parsed down to a few dollars if not pennies. The more complex the crossover, the sharper the pencil. Moreover, the task of undertaking systematic comparisons between crossover piece parts is daunting and rarely undertaken.
But any hobbyist who has made such substitutions understands the gains in this area that reveal the potential of a first rate driver. Personally I wouldn't purchase a speaker from any manufacture who can't articulate the rationale of his choices of these piece parts.
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