I've run my Druid Mk4/08 with 30W class-t and 100 WPC class-d ICE, and aside from level and some bass control (as you would expect) there is little to distinguish them. That sonic-t amp really is very good, and when you get right down to it, class-d is class-d. I am astonished by how little difference there is between a $50 implementation and a $2000 implementation.
You are right though, you need at least 60W for the Druids. They are efficient, but they are not horns.
You are right though, you need at least 60W for the Druids. They are efficient, but they are not horns.