Quote Originally Posted by Remonster View Post
Too little power is much more dangerous than too much. In simple terms, listening at loud levels with a low powered amplifier puts you at a much higher risk of damaging your speaker via distortion. It's a lot more difficult to pump so much power through a speaker that you damage it that way, not impossible but much less likely in practical usage.

Think of "power" as "clean headroom," an amplifier that can deliver 100 watts of continuous power at a very low distortion level will be able to play louder than a 20w amplifier before distortion levels become high enough to be dangerous.

The CMT340SE mains are rated at 90dB sensitivity in an anechoic chamber and 92dB in-room meaning they will get extremely loud without needing too much power. As Curtis said, you'll definitely be fine.
Thanks Remonster. I have an xpa-2 on the way. Not sure I need it, but I wanted it.