I wouldn't count on that measurement being meaningful without having detailed information on the technical characteristics of the meter, which chances are will not be available. One important parameter being how brief a transient it is capable of capturing. Others would include its frequency bandwidth, and some indication of how it handles non-sinusoidal waveforms (e.g., true rms, or peak converted to sinusoidal rms equivalent, etc.).
That said, the power capability you need will vary dramatically as a function of the dynamic range of the music you are listening to (i.e., the DIFFERENCE in volume between the loudest notes and the softest notes). What I would suggest is that you repeat the measurements with material having the widest dynamic range that you would normally listen to. Many classical symphonic recordings, for example, have vastly wider dynamic range than most rock recordings, and therefore require vastly more power during brief peaks, for the same average volume.
Regards,
-- Al
That said, the power capability you need will vary dramatically as a function of the dynamic range of the music you are listening to (i.e., the DIFFERENCE in volume between the loudest notes and the softest notes). What I would suggest is that you repeat the measurements with material having the widest dynamic range that you would normally listen to. Many classical symphonic recordings, for example, have vastly wider dynamic range than most rock recordings, and therefore require vastly more power during brief peaks, for the same average volume.
Regards,
-- Al