@ shippers and polyclockers
If you start a lot of ships with a frequency of one ship per day, then, after the first ship arrives (assuming they carry identical load...) it will seem to the observer who only sees the endpoints of the journey as if a ship makes the trip in one day. If you now start another ship (or two or such...)slightly offset in time, then it will look as if they take less and less time. ? What an idea! Let's call it 'superscalar pipelining'.
RMS, PMPO, jpabncilg (stands for: just picked a big number 'cause it looks good) is all a bit meaningless if you don't specify what is delivered at that power level. There are amplifiers out there that sport a kW per channel in a relatively small box, and they deliver it by PWMing something like 200kHz from a SPS with the audio signal. Loud, yes, nice, not. THD should be given with the power rating, as well as a curve comparing P to k and f. And then listen to it. After all, you don't blisten to the label, do you?
Oh, btw, some makers actually measure amps like this:
1. Volume to max
2. attach voltmeter to unloaded output.
3. 0 db white noise to the input.
4. measure fast and memorize.
5. same with ampmeter, only look faster.
6. multiply open output voltage with shorted output current = (lots of digits of your choice)
7. Profit (oops, wrong channel, sorry)