Bill, the S-30 won't drive Wilson Sophias well, but MA-1s, especially Mk IIIs, will do a wonderful job. A pair of M-60s could be used if budget is limited but you'd likely want to use a pair of ZERO autoformers with them. The MA-1s will do a better job all around.
Disclaimer: Atma-Sphere dealer.
Disclaimer: Atma-Sphere dealer.