I suppose it depends on what you mean by 'peak'.

Take music out of it for a moment and lets talk power distribution. In a DC circuit watts is simply voltage multiplied by amperage. It gets more complex in AC due to phase angles and so forth which can make VA not equal watts, but in a resistive circuit (like a test load) RMS is computed the same as DC IIRC. So RMS volts times RMS amps would result in RMS watts, or AC watts that heat the same as DC watts would, not the AC watts as measured instantaniously at the peak of the AC waveform.

If you are talking about 'peak' as in musical peak then that's a whole different thing and isn't really germane to my point.

In any case the line input and speaker output are BOTH AC and both obey the same laws. You can't put in 1800 watts and get out 2100, that is the crux of the issue.


Charlie