The SC-IC-SUB8 high-performance small aperture in-ceiling subwoofer delivers best in class deep bass performance through a small, finished opening to meet the aesthetic needs of the modern home. Designed to hide the woofer cabinet between ceiling joists, and port the low frequency sound through a small 4.75” opening in the ceiling. It features a custom 8.27” polypropylene woofer, dual 1-1/2” voice coils, precision tuned port tube and a vinyl wrapped MDF cabinet, mounted to a single joist.