The SB250zR is a high output, mid-size subwoofer system. This versatile, all-purpose subwoofer is designed for portable use where the solid-sounding output of dual 15 inch drivers is desired. The SB250zR works well with most full-range loudspeakers in a variety of applications including: band/club PA, small houses of worship, small auditoriums/theaters, A/V systems, hotel ballrooms, meeting rooms, classrooms, exhibit areas, f/x reinforcement, cruise ships, small dance clubs, DJ monitoring, and drum-fill monitoring.