PA Crossovers
A PA crossover is an electronic audio processor that splits audio frequencies into separate bands so each speaker receives only the frequencies it is designed to reproduce. In professional PA and DJ systems, crossovers are commonly used to send:
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Low frequencies → Subwoofers
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Mid frequencies → Midrange speakers
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High frequencies → Tweeters/Horns
This improves:
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Sound clarity
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System efficiency
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Speaker protection
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Overall volume and performance
There are two main types:
Passive Crossovers
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Built into many speaker cabinets
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Do not require power
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Usually found inside full-range speakers
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Simpler but less adjustable
Active Crossovers
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External electronic units
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Require power
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Installed between the mixer and the amplifiers
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Offer adjustable crossover points, gain, and outputs
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Preferred for professional PA/DJ systems
Typical crossover configurations:
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2-Way Stereo → High + Low
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3-Way Stereo → High + Mid + Low
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Stereo + Subwoofer → Left/Right mains plus dedicated sub output
