Features 8" Midrange loading Waveguide Horn Extends lower frequency bandwidth Heavy duty ABS plastic construction 4 point mounting Specifications Throat Exit Diameter: 5.19"/ 132 mm Mounting Depth: 6.49"/ 146.80 mm Mounting Width: 8.31"/ 211 mm Cutout Diameter: 9.21"/ 233.88 mm Description Upgrade your sound system with PHM8: 8in Midrange Horn. Featuring an 8" loading waveguide horn, it efficiently extends the lower frequency bandwidth for richer audio. Built with heavy-duty ABS plastic, it prov