Can a power amp have too much power, risking damage to a speaker?

If you crank up the volume beyond the speaker’s capababilities for an extended period, then you’ll likely blow the speaker. However, typically it’s an underpowered amp that goes into clipping that will destroy the speaker. More power is better, but must be used judiciously.

Rb61 agree. +1. My experience with my Tekton speakers and my Tsakadiris 150 w mono? I got involved so much on the music playing. I crank the volume beyond the speakers limit , I blew the tweeter.So be careful.

Don’t you have a preamp?

Just don’t turn it up.

A general rule of thumb we see in service of loudspeakers 

too much power sent to a speaker cooks woofers (from being too loud, beyond the dynamics of the speaker)

underpowered usually cooks tweeters as the amp runs out of power and begins clipping ( clipped output = square waves = impossible for a speaker to follow a square wave precisely so it overheats trying to )

Brad

Not a good match.  Don’t do it.