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Series-Type Passive Crossover Networks. Part 1: First and Less-Than-Second Order Crossovers
Although there is no question that the implementation of a parallel crossover network represents the most useful and flexible approach to the electroacoustical transducer matching in a loudspeaker system, there is also no doubt that series-type crossover networks can provide the designer with some interesting features. Unfortunately, the conventional formulae are restricted to the case where the impedance loads, representing the drivers, are equal to each other, therefore limiting the application range. This work is intended to explore in more detail the series crossover network topology, presenting more general formulae and showing the advantages and disadvantages with respect to a parallel solution. In this paper, first to "less-than-second" order circuit realisations will be considered.
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