Electrical circuit used in a sound system to direct different frequencies to tweeters, woofers, and midranges or to power amps that power them. Passive crossovers use the power available, whereas active crossovers use powered devices such as transistors or op-amps to more cleanly divide the signal and are normally placed in the high impedence part of the circuit before the power amps.
I put active crossovers in my Maserati because I kept smoking the passive ones. My ride's system really hits hard now.
by hillsurfer March 29, 2007
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