2 Mackie THUMP15A 15" Powered Loudspeaker+ Free 2 Mr. Dj Cable and Absolute Mobile Phone Holder Delivering proven, chest-thumping low-end in an extremely affordable package; 2 Thump15A 15” Powered Loudspeaker+ Free 2 Mr. Dj Cable and Absolute Mobile Phone Holder. Thump15A has been redesigned from the ground up to sound better than ever. Thump features an all-new amplifier design with Dynamic Bass Response for the chest-thumping low end. Plus, the flexible built-in 2 channel mixer features Vita preamps with Wide-Z technology that handles mic, instrument or line signals with ease. Application-specific speaker modes let you dial in the system at the push of a button. With an all-new professional enclosure and robust system protection, you can walk into your next gig with confidence. Class-D amplifier with Dynamic Bass Response provides chest-thumping power The Thump15A pumps out a massive amount of sound for its size. Its high-output woofer generates ample quantities of throbbing bass, and its 1.4" titanium dome driver ensures even wide dispersion. Ultra-efficient Class-D amplification with Mackie's proprietary Dynamic Bass Response pushes plenty of power to the high-frequency compression driver and high-output woofer. And you don't need to worry about damaging your speaker, thanks to the Thump15A's next-generation system protection and thermal limiting. Built-in two-channel mixer offers the ultimate flexibility Connecting your gear to the Thump15A is a piece of cake — its built-in two-channel mixer features Vita preamps with Wide-Z technology, so they accommodate microphone, line-level, and instrument signals. An XLR thru output makes for an effortless wired connection to other Thump speakers, while flexible mounting options allow tripod- and pole-mounting, as well as stage monitor use. Advanced features for total system optimization The Thump15A divides high and low frequencies using a precision two-way crossover, while also time aligning the signals so that your audience hears low and high frequencies in sync. And you'll always sound your best, thanks to application-specific speaker modes that optimize your system for your situation. At Sweetwater, we've found that the Thump15A makes your kick drum thump and your hi-hats sizzle, regardless of your application.