Hey Paul,
Welcome! First of all the m3's, or any of the Axiom lineup for that matter, should be defined as bright. They are detailed and "true" to the original recording. They may bring out some flaws in "poorly" engineered CD's, but will sound outstanding on good quality cd's. To me, that is a good thing.
Can't help on the Energy's, have never heard them. I think if you do a search for Energy in the subject line, you will get old posts on this matter.
JohnK will be along later this evening, he is our resident classical master.
I do own some classical music on his recommendation, I have the m80's.
Are you planning on ordering from the factory outlet, that will save you an additional 10% on your purchase? The m3's have great bass response, where the m22's might give you a little more detail, but that would be around $400 from the outlet.
