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Wattage lowering


Um...Me123
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I doubt that your stereo puts out 72 Watts per channel. It is probably 72 Whats per channel.
Audio-video stores sell cheap L-Pad attenuators for speakers that soon burn out, and pretty good stepped transformers for adjusting the volume of speakers far from the amplifier. Use a stepped transformer, turn it down then remove its knob.

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Its ad says, "72 watts x 4 peak power". Peak power is double the normal power which is 36 Watts x 4. But they don't say how much the amps are overdriven since they don't say the distortion so the power per channel at clipping could be only 14 Watts. Most car amps produce 14 Watts per channel at clipping into a 4 ohm speaker.

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  • 2 weeks later...

Its ad says, "72 watts x 4 peak power". Peak power is double the normal power which is 36 Watts x 4. But they don't say how much the amps are overdriven since they don't say the distortion so the power per channel at clipping could be only 14 Watts. Most car amps produce 14 Watts per channel at clipping into a 4 ohm speaker.

The 72W is probably 72W PMOP which basically translates to the O/P power just prior to melting. There is really only one power measurement and that is RMS. It would be handy if you can find out what the RMS power of this amp is. Would be much easier to say if the speakers will handle it. If the speakers are a decent brand then the power of the speakers is probably in RMS and can probably handle the amps O/P.
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