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Implementation schematic of a three-way active crossover network for use with a stereo three-way loudspeaker system. An active crossover contains active components in its filters, such as transistors and operational amplifiers. [1] [2] [7] In recent years, the most commonly used active device is an operational amplifier.
Bi-amping - An active crossover with two amplifiers.. Bi-amping and tri-amping is the practice of using two or three audio amplifiers respectively to amplify different audio frequency ranges, with the amplified signals being routed to different speaker drivers, such as woofers, subwoofers and tweeters.
A Linkwitz–Riley (L-R) filter is an infinite impulse response filter used in Linkwitz–Riley audio crossovers, named after its inventors Siegfried Linkwitz and Russ Riley. This filter type was originally described in Active Crossover Networks for Noncoincident Drivers in the Journal of the Audio Engineering Society.
Active crossovers may be simple circuits that emulate the response of a passive network or may be more complex, allowing extensive audio adjustments. Some active crossovers, usually digital loudspeaker management systems, may include electronics and controls for precise alignment of phase and time between frequency bands, equalization, dynamic ...
Amplifier and loudspeaker with two elements and crossover networks. Top: normal connection. Bottom: bi-wiring. Loudspeaker bi-wired using banana plugs. Bi-wiring is a means of connecting a loudspeaker to an audio amplifier, primarily used in hi-fi systems. Normally, there is one pair of connectors on a loudspeaker and a single cable (two ...
Bessel filters are often used in audio crossover systems. The filter's name is a reference to German mathematician Friedrich Bessel (1784–1846), who developed the mathematical theory on which the filter is based.
The Linn Isobarik DMS (with in-built crossover) in a domestic setting The Linn Isobarik , nicknamed " Bariks " or " Briks ", is a loudspeaker designed and manufactured by Linn Products . The Isobarik is known for both its reproduction of low bass frequencies and being very demanding on amplifiers.
An example of high-pass active filter of the Sallen–Key topology. The operational amplifier is used as a buffer amplifier. An active filter is a type of analog circuit implementing an electronic filter using active components, typically an amplifier. Amplifiers included in a filter design can be used to improve the cost, performance and ...