Thanks. I was afraid it was something like that. The real problem is that I have no idea how to describe the Allisons' sound, nor could listening in a showroom tell me whether a candidate would work or not in my listening room at home. It's a little like trying to talk to my wine-loving friends, they have a vocabulary that they understand but I don't; I really don't have a vocabulary for describing speakers' sounds that would help me understand whether any two would be "similarly voiced."