I have the Axioms with the M80 and EP500. I used M200s for a while and loved the sound. Now I have a 3 channel amp for the fronts and use the M200s for rears.
Both companies have the 30 day trial. Both have good CS.
Order the mains from both and do an A/B.
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Outlaw M200 x4 / Monster 3250
Harmony 1100
Sony 55HX800
x-Statiks, x-voce, x-omni