Features 6.5" Midrange loading Waveguide Horn Extends lower frequency bandwidth Heavy duty ABS plastic construction 4 point mounting Specifications Throat Exit Diameter: 4.06"/ 103 mm Mounting Depth: 4.79"/ 121.80 mm Mounting Width: 7.4"/ 188 mm Cutout Diameter: 8.23"/ 209.06 mm Description Upgrade your audio system with the PHM65 6.5in Midrange Horn. The loading Waveguide Horn enhances lower frequency bandwidth, while its heavy duty ABS plastic construction provides durability. Easily install w