When a non-audiophile requests a loudspeaker recommendation, he often assumes that the first question you’ll ask him will be, “How much can you spend?” In fact, the first question should be: “Where will they go?” Other variables—the sort of music that’s favored, listening levels, aesthetic considerations, and, yes, cost—are often less critical than the nature of the room in which the speakers will reside. As you advise your...