I have never been a Wilson fan, but had a powerful lesson why recently at a small show in England. I entered the room and the Sashas were being driven by a large Krell stereo amp, I am not sure which. Brittle, edgy, hard and quite unpleasant sound. I was just about to run out screaming, when the amp was changed to an Audio research reference 150. What a difference, all the detail but smooth, fast, great soundstage, quite delightful. I believe Wilson's are voiced on ARC amps.
Thinking about it, I have always heard Wilson speakers on SS amps. My conclusion, they need tubes and maybe ARC are the best choice.