to make a good difference, and make the Axioms really shine, you could get a few of those amps:
http://www.qscaudio.com/products/amps/gx/specifications.php

any good amp will give the same SQ, except if you overdrive it.
with those QSCs, you will never need more power or better sound.

their fan is of the variable speed type and should rarely speed up from "low speed".

See: http://www.blu-ray.com/community/gallery.php?member=Gelli
or: Axiom Gallery