I do not have Sophia's but reviews of the Sophia 2 and 3 in HIFICRITIC suggest that the AR 110 did an exceptional job. These reviews cannot be obtained except by buying the relevant magazine but it might be worth it as they are very detailed. For those not familiar with it HIFICRITIC takes no ads and has some of the most experienced reviewers and engineers on its staff, all of whom make their living elsewhere. The bigger AR's should be even better; as a SS user I will defer further comment to the tube mavens. The AR Ref 3 and 5 are their top rated Pre's. too pricy for me to have tried and as I said I use hybrid or SS, just my choice.