18" Powered Subwoofer
ETX-18SP from Electro-Voice is a powered subwoofer; it can be used in a variety of portable and permanent applications. The DSP (Digital Signal Processing) menus offer extensive configurations, crossovers, 1 cardioid presets, protection limiters, EQ mode, and a lock out mode that prevents casual changes to the system. Loudspeaker system performance is optimized via an LCD screen. The front LED indicates power or can be configured to indicate limits.