SB818P|F is direct radiating, with optimally tuned, vented enclosures. Top quality drivers, developed in concert with EAW engineering to provide the highest output and best sonic performance possible for a given form factor. It is designed to be used with today’s sophisticated digital signal processing to optimize the LF response. The versatile, all-purpose SB818P|F subwoofer works well with most full-range loudspeakers in a variety of applications. It is designed for permanent installation where the fatter-sounding output of an 18 inch driver is desired. Additionally, the SB818P|F is flyable and ultra-compact, ideal for installs or other applications with minimal floor space for subwoofers.