[Robscix]

I am not sure if you are talking to me or the other poster. Of course one measurment doesn't give the entire picture of how a device responds or performs.

SNR, however is a industry standard for measurement of a audio device and the Signal to Noise Ratio (SNR) is imperical measurment that demonstrates the relationship between the audio signal and the noise of the device being measured. You cannot just discount it altogether or rely on it soley. You do however have other measurments that need to be reviewed also, Such as THD,IMD,Dynamic range, Impulse response etc. Audio measurement is a very lengthy topic and the subject of much debate.
You also have many who believe that audio device measurments can only show you so much in relation to how a device will sound -Which is true in some respects.
That being said, until somebody comes up with a better system to gauge and measure these audio devices we are stuck using the current measurment system.