Mackie just launched a new subwoofer built from the ground up to be the companion to its SRM450 and SRM350 powered loudspeakers, dubbed the SRM1550 Portable Powered Subwoofer. Featuring a powerful 1200-watt amplifier, custom high-output 15-inch woofer, digital variable crossover, the new SRM1550 is front-ported. Equipped with stereo XLR inputs, full-range and high-pass outputs, the SRM1550 also features a variable digital crossover that includes presets for the Mackie SRM350 and SRM450, for simple and fast setup at every gig. Plus, built-in Smart Protect DSP protects the 15-inch woofer when pushed to the limit. Compact, lightweight and affordable, these subs are ideal for being used with the SRM Portable Series for a PA setup.