Well, I've listened to Amator & GUarneri driven by the Pathos old integrated, and by their monos ("in power"). Nice, "creamy" sound, very convincing/ satisfying musically.... This oesn't help much, I know -- but what are your sonic criteria / what kind of music do you listen to?
BTW, I used a volume pot ("passive" pre) with the monos without problems driving the Amator
BTW, I used a volume pot ("passive" pre) with the monos without problems driving the Amator