Massive Sound with Wireless Control and Streaming The Thump12BST delivers chest-thumping low end, thanks to Mackies proprietary Dynamic Bass Response, along with wireless control and Bluetooth streaming. The built-in three-channel digital mixer features a pair of Vita+ preamps with Wide-Z technology, effortlessly handling mic, instrument, and line-level signals. Its easy to get great sound with the Thump12BST ? channels one and two supply you with a three-band EQ and variable highpass filters, and six application-specific speaker modes tailor the speaker to your situation. Complete with a durable road-ready enclosure and robust system protection, the Thump12BST is great for DJs and electronic musicians. Class-D amplifier with Dynamic Bass Response provides chest-thumping power The Thump12BST 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 Mackies proprietary Dynamic Bass Response pushes plenty of power to the high-frequency compression driver and high-output woofer. And you dont need to worry about damaging your speaker, thanks to the Thump12BSTs next-generation system protection and thermal limiting. Built-in three-channel digital mixer with wireless control Connecting your gear to the Thump12BST is a piece of cake ? its built-in three-channel digital mixer features two Vita+ preamps with Wide-Z technology, so they accommodate microphone, line-level, and instrument signals. A stereo Bluetooth input allows you to stream music directly from your smart device. You can wirelessly link your Thump Boosted speakers together in stereo or dual-zone modes, or wire them together via an XLR thru output. A high-resolution full-color screen displays your levels, metering, and more.