Product Description Sound Town ZETHUS Series Dual 18" 3200W High Power Line Array Passive Subwoofer, Black, for Stages, Bars, Clubs (ZETHUS-218S) * ** * The Sound Town ZETHUS-218S is a high-performance line array passive subwoofer with two 18“ long-excursion drivers. It features a rectangular design for ground/stacking use in the most demanding touring applications. With two 18" high power transducers and one 4" voice coil built in, the ZETHUS-218S subwoofer handles 1600W RMS / 3200W peak power output, and delivers deep, rich and punchy bass. An aluminum demodulating ring is employed to further reduce distortion. When integrated with the ZETHUS-210B or ZETHUS-208V2 full range array speakers (ZETHUS-SF1 mounting frame is required and available separately), the line array speaker system delivers accurate and immersive sound performance at earth shaking volume. Housed in a top-quality multi-layer birch plywood enclosure with an anti-corrosion 14-gauge steel grille and a durable textured coating, the ZETHUS-218S is built to last and withstand a lifetime hard tour use. For increased versatility, the ZETHUS-218S subwoofer can be stacked vertically with the ZETHUS-SF1 mounting frame for ground/stacking use in the most demanding touring or concert applications, perfect for stages, bars, ballrooms, restaurants, houses of worship, convention centers and more. For a high-performance, durable line array subwoofer with superb sound quality, check out the Sound Town ZETHUS-218S.