PM,
If the M3s are not 'clear' enough for you in the high end, i would certainly sugget the M22s. They do not have much bass, many bookshelf speakers don't, nor should they unless they can encompass a large driver to compensate for their smaller enclosures (although even this is limiting).
The M22s should be about the clearest sounding speaker that Axiom has.

"Those who preach the myths of audio are ignorant of truth."