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What is RMS Power?

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What is RMS Power?

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“RMS power” is a misnomer derived from the usual method of calculating speaker power, which is to divide the RMS voltage squared by the impedance (V2/Z). RMS is the acronym for root-mean-square, which relates to the mathematical equation that obtains the average of the modulus of an alternating signal (that is, with positive and negative cycles). The correct expression for “RMS power” is average power. The ratio between RMS and peak values is different for each signal.

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