I am looking into a separate power amp for my M80's, between the Anthem 225 or 325, Rotel 1582mkii and to a lesser extent the parasound A21...I've looked at the Axiom ADA amps.. are they really that good?

VP180v3, M80v2, QS8v4, Arcam AV860, Rotel RMB1585, Epson 5050ub