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Satisfactory output of the complete system comprising the audio crossover and the loudspeaker drivers in their enclosure(s) is the design goal. Such a goal is often achieved using non-ideal, asymmetric crossover filter characteristics. [5] Many different crossover types are used in audio, but they generally belong to one of the following classes.
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.
From this point, connections are made to the loudspeaker drivers – usually through audio crossover networks. In bi-wiring, each loudspeaker has two pairs of connectors and two cables are run from the same amplifier output to the speaker cabinet: one for the high frequency or tweeter driver and one for the low-frequency driver (through two ...
In professional concert sound system design, subwoofers can be incorporated seamlessly with the main speakers into a stereo or mono full-range system by using an active crossover. The audio engineer typically adjusts the frequency point at which lower frequency sounds are routed to the subwoofer speaker(s), and mid-frequency and higher ...
Transfer function measurements can be used to adjust audio crossover settings for multi-way loudspeakers; similarly, they can be used to adjust only the subwoofer-to-top box crossover characteristics in a sound system where the main, non-subwoofer loudspeakers are flown or rigged but the subwoofers are placed on the ground.
It is designed to be amplified by 10 dB on playback and summed into the signal going to the subwoofer. The LFE channel for movies has a frequency range extending to 120 Hz, and some AV receivers apply a 120-Hz low-pass filter during playback, and this frequency is independent of the settings of the low-pass and high-pass filters that are ...
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While this is the case, the subwoofer is not on a separate output as it is with 5.1 and higher audio. Instead, a low-pass filter (crossover) within the speaker system removes high and midrange frequencies from the sound card's output for the subwoofer. Games see a "4.1" speaker system as quadraphonic because DirectSound itself offers no ...
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