Protect your KRK S8.4 Subwoofer with this Grille that features an accompanied Gasket! It shields the driver on your monitor and easily integrates into the cabinetry. The S8.4 powered studio subwoofer builds upon KRK's legacy for sonic accuracy and stellar performance. The custom-made, Kevlar woofer delivers ultra-tight, defined bass, while the Class-D power amplifier dramatically increases transient response, control, and punch. The four-position selectable crossover lets you adjust the subwoofer setting easily to your existing monitors.