Explain impedance matching of PA system.

Explain impedance matching of PA system.
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Answer :

Impedance Matching of PA system:- (i) It is necessary to match the total loudspeaker impedance with the output impedance of the power amplifier. It will ensure maximum power transfer to the loudspeakers. (ii)If the output impedance of the output stage of PA system is not matched with total impedance of speaker unit, then it can cause excessive power dissipation, distortion and noise.
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