Comb Filtering and Acoustical Interference are two audio terms that relate to the manner in which two or more sound sources (such as two separate speakers or two drivers within a single speaker system) interact and affect each other. The importance and audibility of these phenomena are the subject of this article, and they are a source of a continuing difference of opinion among well-respected equipment designers and acoustic theorists\/researchers. Dealing with potential acoustical interference issues of multiple drivers in the same loudspeaker cabinet is something any serious designer should be concerned about and not just brushed off as a measurement artifact that doesn't have real world implications. \n\n\nDiscuss "Comb Filtering, Acoustical Interference, & Power Response in Loudspeakers" here. Read the article.