I heard the Alexandria X2 driven by a 22wpc Audio Note Ongaku a couple of months ago. The mids were good but the overall sound lacked dynamics and jump factor. I guess the AN was probably struggling to control the 15" bass drivers. I auditioned the same X2 driven by big Edge monoblocks and the sound was significantly better; effortless and musical. I heard the same problem with an 8wpc Kondo Neiro amp trying to drive the WP7.
I agree that those Wilson speakers sound better with more power/current.
I agree that those Wilson speakers sound better with more power/current.