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The Design of Active Crossovers Douglas Self
Publisher: Focal Press

Then you need an amp for every frequency band the speaker requires. In short, any cost and design complications in systems using active crossovers are offset by the following gains: "The end result? The EbenLee Audio Mini Cube and MC2 SE speakers were designed to be used this way. Almost any modern receiver allows us to use fully active crossover circuits if the speakers are designed to use them properly. Crossover Points & Order At the crossover point, power to each loudspeaker is reduced -3 dB (1/2) so total sound energy is 1. Electronic active crossovers can have extra compensating circuitry. In some passive crossovers this is adjusted for by reversing the polarity of adjacent loudspeakers. Then you need to design active electronic custom crossovers, or use achieve the same use units such as Mini DSP. Furthermore, my (small) experience with relatively high order active crossovers so far is that it makes for such a small area of overlap at the crossover point that other design constraints can be relaxed a little if need be. At the crossover point More recent design trends are for power to be decreased to -6 dB (1/4) to each loudspeaker at the crossover point, and the slope rate can be selected.