FEATURES

PSS-W121-F, a single 21-inch subwoofer with direct-fire inverted-phase cabinet construction designed for deep and dynamic low-frequency effects. It is equipped with 1x21" 115mm voice coil woofer to ensure a rich and powerful sound. The cabinet structure is constructed of multi-layer composite plywood with an abrasion-resistant polyurea coating for enhanced durability and protection. This speaker can be used with linear and point source full-range speakers for a wide range of professional audio applications to enhance the low frequency performance of your system.