The Mackie DRM218S-P is a professional-grade 18-inch passive subwoofer designed to deliver powerful, deep bass for live sound applications, including theaters, music venues, clubs, houses of worship, DJs, and rental systems. Its front-ported, direct-radiating design provides maximum low-frequency impact, with a frequency response of 35 Hz to 150 Hzand a maximum SPL of 135 dB.
 
Built with a rugged plywood enclosure and internal bracing, the DRM218S-P is engineered to withstand demanding professional use while maintaining excellent acoustic performance. It features parallel SpeakON inputs, an integrated pole mount for compatible loudspeakers, and optional fly hardware for permanent or touring installations.