D373A - Diamond Audio 5"x 7" / 6"x 8" Convertible Speaker System with Aluminum Tweeters D373A - Diamond Audio 5"x 7" / 6"x 8" Convertible Speaker System with Aluminum Tweeters Hard Anodized Aluminum Cones Mounting Diameter: 6.92" x 4.95" Mounting Depth: 2.25" Magnet Diameter: 3.07"