ICE All About Amps

So what’s the difference between RMS and the more common MAX or PMPO power rating?
When shopping for an amp, you only want to look at the RMS rating – this is the continuous power rating that the amp can provide. With MAX or PMPO, this is what the amp can do at full tilt for no more than a few seconds before it goes pop. The RMS is always a lot smaller than the MAX rating, commonly about half if the amps efficiency is about 50%.