Ar ref 5+ krell evo 402e

I have dynaudio sapphire speakers, asr amp and phono pre, project extension tt, ear acute cd player and aq cables. These days i am thinking about an amp change. What would be your thoughts about changing ast to ar ref5 + evo 402e ? Really appreciate your recommendations and experience, any thoughts will be wellcome.
I have an ARC Ref 5SE driving a Krell 403E and it's a very good combination. I also have ARC Ref 250 amps as well and depending on type of music, I switch back and forth between the two amps. The 402E will match very well with Ref 5- highly recommended!