A high-output, large-format subwoofer system with proven performance in complementing high efficiency, full-range loudspeakers, the legendary Eastern Acoustic Works SB1000zP is a subwoofer designed for permanent installation where the fatter-sounding output of dual 18" drivers is desired. It's driver mounting maximizes cone area and minimizes frontal area, providing acoustical performance and physical configuration well-suited for creating large subwoofer arrays.