The Mackie DRM18S is a high-output, 18-inch powered subwoofer engineered to deliver deep, powerful low-frequency extension for professional live sound, mobile DJ, and installed audio systems. As part of the DynaRoad Modular (DRM) series, this active subwoofer integrates a massive 18-inch long-throw woofer with a dedicated high-power Class D amplifier and advanced Digital Signal Processing (DSP) into a single, road-ready enclosure. The amplifier delivers 2000 watts of peak power, optimized to drive the large driver with maximum efficiency and control, producing the high sound pressure levels and ultra-low frequencies required to energize large audiences and reinforce modern music content.

A central feature of the DRM18S is its integrated DSP, which provides user-selectable operating modes such as Extended Low Frequency, High Output, and Cardioid modes for directional bass control when multiple subs are used. This intelligent processing also includes precise crossover control, limiting for driver protection, and phase alignment to ensure seamless integration with full-range satellite speakers. The subwoofer offers comprehensive connectivity with dual XLR/TRS combo inputs featuring a mix output for daisy-chaining, and both XLR and 1/4-inch outputs to feed the main PA system. Its rugged cabinet, constructed from 18mm Baltic Birch plywood with a textured polyurethane finish, includes multiple M10 suspension points for flying and integrated heavy-duty wheels and handles for easy transport.

The Mackie DRM18S is designed for reliability and impact in the most demanding sound reinforcement environments. Its all-in-one powered design simplifies system setup by eliminating the need for external amplifiers and processors, while its robust construction and intelligent DSP ensure consistent, thunderous performance. Whether used as a single powerhouse for mobile events or arrayed in multiples for large concert venues, this subwoofer provides the foundational low-end necessary for a full-spectrum, professional audio experience.