The Mackie SRM1850 is an active subwoofer that gives you thunderous chest-pounding bass. 1600W of power and a custom high-output 18 woofer puts your sound on the map delivering a deep defined low-end with phenomenal impact. When it comes to loudspeakers and subwoofers its not just about the electronics. Cabinet design plays an enormous role in performance. Thats why Mackie went all out with the SRM1850. An all-wood internally-braced cabinet keeps your sound tight focused and powerful. Plus its built to last. That signature Built-Like-A-Tank construction gives you incredible long-term reliability both on and off the road. Integrating the SRM1850 into your system is seamless. Stereo XLR inputs make hooking up your sound source simple. And with stereo XLR full-range and high-pass outputs you have flexible options for connecting to your loudspeakers. Combined with a digital crossover boasting variable control and presets for Mackies SRM loudspeakers you have everything you need to take your sound from good to great.