Audio Crossover Information
Audio crossovers filter sound spectrum frequencies and route them to individual speakers: low frequencies are sent to woofers, and high frequencies are sent to tweeters. Crossovers are either passive or active in design and function and help speakers receive the proper signal to reproduce optimum sound.
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Passive Crossovers
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Simple passive crossovers exist in most every audio system where more than one type of speaker is used. Passive crossovers deliver the filtered audio to speakers through a single amplifier.
Active Crossovers
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Active crossovers are used when multiple amplifiers, dedicated to each type or set of speakers, are built-in along with the speakers. This system delivers truer and more efficient sound, as the amplifiers are optimized to the different speaker power and ohm ratings.
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Component Crossovers
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Separate active component crossovers are used in high-end home and professional sound systems. Frequency adjustments allow "tweaks" to be made for better frequency response, which is sometimes desired when multiple speakers and separate amplifiers are used.
Crossover Settings
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Non-adjustable active and passive crossovers are preset, and cannot be changed. Adjustable component crossovers can feature controls for up to five frequencies: sub-bass, bass, midrange, high-mid, and highs. Always follow the owner's manual for recommended settings and set-up, as serious damage to speakers can occur with incorrect settings.
Which is the Best?
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Built-in speaker crossovers, the most common type, are all optimized to produce pleasing sound, whether active or passive. The listener's ears are the best judge, however.
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