FILA SERIES - ITALIAN COMPONENTS: Experience bass like never before with FILA-118S passive line array subwoofer, featuring Italian-made 18 transducer with a 4.5 voice coil, capable of delivering 1200W RMS, 2400W program power output at 8 TOUR-QUALITY BUILD: Encased in a high-quality plywood enclosure, unwanted distortion is minimized even at high outputs, providing the clean, punchy bass you can expect from tour-quality craftsmanship SUSPENSION/FLYING INSTALLS: Seamlessly add to your suspension setup using the FILA-208FF flying frame (sold separately). Effortlessly combine up to 16 FILA-208 line array speakers (sold separately) for full-range performance PORTABLE GROUND STACKING: The FILA-118S can be ground stacked with additional FILA-118S line array subwoofer or up to 6 FILA-208 line array speakers. The ZSCB-FL118S caster board (sold separately) makes ground stacking and transportation hassle-free