Gas Generator how many watts!!!

If memory serves me;
Audio Power Amps are rated output, not power required to drive them, which can be many many many more times the output.
> and audio amps are rated at a certain distortion level, which at a party, can easily be exceeded...... and when you drive your audio amp into distortion it will require ever more power input.

I have two 200 watt @.008THD mono power amps and I run them on separate 15A circuits; and two other stereo amps on a third circuit, and pair of small self-powered subs on a fourth circuit. My audio power meter on the monos, has indicated, at times, over 1000 watts per channel.
I have never tripped a breaker but I have not ever actually measured the draw either.
Jus saying.

I suggest some really really really long extension cabling, which is gonna suck up some power too.