Suggestions (based on experience) for power amp for Dynaudio Contour 20s, please

I recently bought the Contour 20s and am pushing with the Lyngdorf TDIA2170 which is high current 170W at 4 ohms. I wish I had more power.
I'm sure the Primaluna would sound great depending on your listening habits and how loud you like to play. 

I have to have the volume up near 0 on the Lyngdorf to get the volume I want. Dont get me wrong it does sound very good. I think they were measured at around 85db @4ohms. I get the feeling the more power the better with these.