Check out this site for a lot of information on Sophias including other's experience with matching amps.
http://audioaficionado.org/wilson-audio/
If I had your speakers in your room, I'd personally go with tubes. The ARC Ref 110 mated with an ARC Ref 5 preamp would be high on my list.
http://audioaficionado.org/wilson-audio/
If I had your speakers in your room, I'd personally go with tubes. The ARC Ref 110 mated with an ARC Ref 5 preamp would be high on my list.