Historically its common for low power amps to damage speakers particularly tweeters when they hard clip and distort.
Tube amps typically soft clip and are less likely to cause damage when clipping to speakers because they distort differently. Read up on clipping and differences between hard and soft clipping for more.
My personal experience is that advances in amp and speaker design over the years makes this less of an issue than in the past, but still something to be aware of and avoid. Clipping is public enemy #1 to good sound....it is distortion and can easily occur anytime to the detriment of sound quality even if no physical damage done. So always better safe than sorry when it comes to having sufficient power to drive speakers to desired levels with minimal distortion.
Tube amps typically soft clip and are less likely to cause damage when clipping to speakers because they distort differently. Read up on clipping and differences between hard and soft clipping for more.
My personal experience is that advances in amp and speaker design over the years makes this less of an issue than in the past, but still something to be aware of and avoid. Clipping is public enemy #1 to good sound....it is distortion and can easily occur anytime to the detriment of sound quality even if no physical damage done. So always better safe than sorry when it comes to having sufficient power to drive speakers to desired levels with minimal distortion.