An amp is almost never 'too much' for speakers (assuming decent speakers)-- it's a much more common problem in the context we're in for an amp to be 'not enough' for speakers and not only sound bad but damage the speakers.

One of the design goals for Axiom speakers seems to be the ability to take a lot of power and not crap out. The ratings are conservative. You should be fine whatever Axioms you drive with that.