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    fazio93's Avatar
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    Question about Voltage Formula for determining Amp Gain

    If Voltage of the output = sqrt(RMS Power X impedance of the speaker)

    I have a Kicker 12" 800 Watt 4 Ohm Dual Voice Coil Comp VR. I have it bridged down to 2 ohms.
    But if I want to determine the needed output voltage from the amp, would I use the 4ohms that the sub is rated for (which would make the needed voltage 40 V) or do I use the 2ohms that I have it set it up at (which would make the needed voltage ~28 V)

    Thanks







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    Re: Question about Voltage Formula for determining Amp Gain

    The formula factors in the impedance of the speaker.

    You test the voltage with the subs not connected to the amp.

    You use 2 ohms, ~28v.



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    Re: Question about Voltage Formula for determining Amp Gain

    ok thanks.




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