A co-worker asked me a question tonight and I was unable to answer it.

He has a 1000 watt subwoofer and a 1000 watt amplifier. For purposes of
discussion, assume we are not applying maximum power to a maximum spec.
speaker.

His question: how to calculate which size wire to use. He assumes it's 1000 watts divided by 12 volts equalling 83 amps.

I guess this has been a variation of my curiosity. I've been curious what calculations are used to spec an amplifier of being 1000 watts.

I understand a home speaker is 8 ohms. Using P= I^2(R) gives a current of 12 amps.

Is this a safe calculation for maximum current?????

He has a 1000 watt subwoofer and a 1000 watt amplifier. For purposes of

His question: how to calculate which size wire to use. He assumes it's 1000 watts divided by 12 volts equalling 83 amps.

I guess this has been a variation of my curiosity. I've been curious what calculations are used to spec an amplifier of being 1000 watts.

I understand a home speaker is 8 ohms. Using P= I^2(R) gives a current of 12 amps.

Is this a safe calculation for maximum current?????