@OP As previous posts have said and well described the differences between two quite different sounding loudspeakers. Although harder to find in the US, it would be useful to listen to a pair of Harbeth M30.2XDs as a point of comparison. And for a bit of a wildcard, also, a pair of Kef LS50 Metas - much less expensive but very good value.
Sonus Faber Electa Amator III vs. the Bowers and Wilkins 805 D4?
I have heard both the Sonus Faber Electa Amator III and the Bowers and Wilkins 805 D4 but each were in markedly different environments. Anyone been able to make a more direct comparison than I have been able? I would be using a Luxman L-590 AxII Class A integrated amp at home.