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.
most cannot deliver their rated power for much more than the crests of the wave when the drums go bang for a few milliseconds every few seconds, and if they did, you'd find to your disappointment the speaker ratings are very much the same, and do not represent anything like a safe steady state power input, more a transient that can be briefly survived. Steady state rating would be about 10% of nameplate figure if you are lucky.
What exactly do you need to know for ? - also realise that it is not a single figure but is very frequency dependant, as is speaker impedance.
The only sure fire way is to capture voltage and current waveforms and multiply them.
Mike.
I am involved with sound equipment at present. I am using very good quality speakers such 12inch Eminence or Fane professional types.
When designing a system I need to know accurate figures to provide adequate sound volume and also to match equipment and prevent damage to speakers or overloading of amplifiers.
Z.
I am involved with sound equipment at present. I am using very good quality speakers such 12inch Eminence or Fane professional types.
When designing a system I need to know accurate figures to provide adequate sound volume and also to match equipment and prevent damage to speakers or overloading of amplifiers.
Z.
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