active crossover

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(n.) The process of employing individual power amplifiers for each output frequency band and sending a signal containing the frequency band to the appropriate loudspeakers. A stereo two-way crossover is a two-channel unit that divides the incoming signal into low and high outputs. A mono three-way crossover is a single channel device with low, midrange, and high outputs. The user can often select the low-to-mid and the mid-to- crossover points. See passive crossover.