House Amperage vs Stereo Amperage

Whilst the above discussions are all technically correct concerning wall plugs, UL, current draw by the amp, etc., has it occurred to anyone that Doc777 maybe confusing the current capability often quoted by big muscular power amps ?
This includes Sunfire, Musical Fidelity, Harman Kardon etc who frequently quote high current capability to drive difficult loudspeaker loads.
Currents way in excess of 30A are often quoted which is not so difficult to achieve with the higher power solid state amps.
With a typical 50Vdc rail voltage, and an extreme steady state case, this 50Vx30A=1500Watts and still within the 1725Watts of your typical wall plug.

Sean, I totally agree with your comments. If you read carefully the first sentence of my response that is exactly what I said and thats why I think the whole discussion concerning 30A draw from the mains supply is a red herring !
In my example of 30A OUTPUT current, equating to 1500W - in my book this is big whether peak to peak or rms unless you have some very power hungry speakers!

However Power output is directly related to power input.
You can never output more power than the mains can supply, and is actually usually less because of ineffiencies of amplfier designs. Amplifiers (and mains supply) can on an instaneous basis supply more than rated current and manufacturers use this quoting music power, pk-pk etc for marketing purposes.
No sane manufacturer is going to commercial a domestic amplifier that needs more than 15A of continuous current from the mains.