The Atma-Sphere M60, in my opinion, would be the ideal choice, 60 watts of purity, Speed, Dynamics, smoothness, Ultra low distortion and fatigue-free listening. It does carry the weight and emotion of the music you listening in a special way.
If you do get the amp or any Atma-sphere amps. Make sure you get all the upgrades, Power Supply Boost, Caddoc Resistor Package and the Vcaps. Many Amps in my listening room worth even 4X the price have not done it all as good the Atma-Sphere Stuff.