I think you will find that all Wilsons play well with tubes. Indeed I’ve owned 3 different sets (Sophia, WP7, Sasha and possibly soon to be Alexia) and have had them in house with a number of systems including all McIntosh tubes, all ARC tubes and tube pre and D’Agostino solid state stereo amp.
3 nearby dealers feature them mostly with tubes. Sophias are the easiest to drive. Sashas quite a bit harder and Alexias the toughest.
A number of members at Audio Aficionado who are also ARC fans use the Ref 75 or Ref 75 SE with 75 watts per channel and feel they need no more on either their Sophias, Watt Puppy/Sashas or Alexias. No doubt that is true for Sophias. I like the Watt Puppy/ Sashas and Alexias much better with the Ref 150 or 150 SE. Alexias are the only speakers in the Wilson line that are noticeably better (10 to 15 percent) with 250 watts (eg Ref 250 or 250 SE). The question then is---Is that percent worth doubling the cost of amplification?
3 nearby dealers feature them mostly with tubes. Sophias are the easiest to drive. Sashas quite a bit harder and Alexias the toughest.
A number of members at Audio Aficionado who are also ARC fans use the Ref 75 or Ref 75 SE with 75 watts per channel and feel they need no more on either their Sophias, Watt Puppy/Sashas or Alexias. No doubt that is true for Sophias. I like the Watt Puppy/ Sashas and Alexias much better with the Ref 150 or 150 SE. Alexias are the only speakers in the Wilson line that are noticeably better (10 to 15 percent) with 250 watts (eg Ref 250 or 250 SE). The question then is---Is that percent worth doubling the cost of amplification?