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Consumer Electronics by S. P. Bali

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THEATRE SOUND REPRODUCTION SYSTEMS_

A sound track is played in a theatre by means of a sound head. Fig. 27.9 shows two sound heads are employed so that little or no interruption of a program occurs when changing from one head to another. The audio outputs from the sound heads are fed to an amplifier and then to speakers that are customarily mounted behind the screen. In addition, speakers may be mounted on either side of the screen. The amplifiers are essentially the same as those used in high fidelity systems and their power output depends on the size of the theatre. It is standard practice to utilise at least one woofer and one tweeter behind the screen. In addition a woofer and a tweeter may be installed on either side of the screen to enhance ...

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