The maximum power a speaker can handle is an indicator of the full sound spectrum. When the sound is concentrated in only a narrow section of the frequency spectrum, a few watts of electrical power can destroy the driver.
How does a speaker blow out?
I don't understand how a speaker "blows" if the wattage of the amplifier is less than the upper limit of the speaker's limit. Then again, I guess I don't really understand what "clipping" is. The amp is 22w, I was listening at a moderately high level, there was a bass heavy section in the music, and then I heard the most painful noise coming from one the of woofers. Sad.