MODE AUDIO FILA-215SB LINE ARRAY SUBWOOFER: Experience bass like never before with the Mode Audio FILA-215SB passive line array subwoofer, featuring dual 15 Italian transducers with a 4 voice coil, capable of delivering 2000W RMS, 4000W program power at 4 with a LF response down to 30Hz TOUR-QUALITY BUILD: Made with a high-quality birch plywood enclosure, the FILA-215SB subwoofer minimizes unwanted distortion even at high outputs, providing a clean, punchy bass you can expect from tour-quality craftsmanship SUSPENSION/FLYING FRAME INSTALL: Seamlessly add to your suspension setup using the FILA-10.1FF flying frame (sold separately). Combine up to 16 FILA-10.1 line array speakers (sold separately) for full-range performance