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Average Audio Power.

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Evenin' all,

how can I easily practically determine the average power being delivered by an audio amplifier into a loudspeaker of declared impedance? Some audio amplifiers can not deliver the power that they claim.

Thanks.

Z.

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  • 0

    Audio output figures are at best an advertising claim and at worse an outright lie.

    I have seen a rack of audio amplifiers in a nightclub with a claimed total output of over 12,000 watts. The lot was on  one 15 amp fuse, which had never blown.

    Have also seen car audio systems with a claimed output of over a kw, connected to the 12 volt battery via a 30 amp fuse.

    The only accurate way to measure the output power is with an audio watt meter. An approximation may be made by measuring the mains INPUT power with a plug in energy meter and assuming an efficiency of 50 %

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  • 0

    Audio output figures are at best an advertising claim and at worse an outright lie.

    I have seen a rack of audio amplifiers in a nightclub with a claimed total output of over 12,000 watts. The lot was on  one 15 amp fuse, which had never blown.

    Have also seen car audio systems with a claimed output of over a kw, connected to the 12 volt battery via a 30 amp fuse.

    The only accurate way to measure the output power is with an audio watt meter. An approximation may be made by measuring the mains INPUT power with a plug in energy meter and assuming an efficiency of 50 %

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