BRAIN/POWER EV's FIR-Drive utilizes the latest Finite Impulse Response (FIR) filter technology to optimize transducer linearity. Advanced limiter algorithms for independent peak and thermal transducer protection. State-of-the-art components deliver the legendary EV sound quality and reliability the pros trust: 1800 W (subs) and 2000 W (full-range) Class-D power amplifiers with integrated DSP produce high SPLs utilizing high-sensitivity, low-distortion transducers (including DVX and SMX series woofers and 1.25-inch HF titanium compression drivers). Complete full-function DSP control via a single-knob interface. LCD screen for easy system set-up and monitoring: location/application EQ presets, limiter status, input level controls/meters and master volume control to ensure optimal gain structure. Subs feature a preset for true cardioid performance. Lightweight, durable and compact 18-mm, 13-ply birch plywood enclosures finished with EVCoat. Eight mounting points for permanent installations (two-way models). Custom die-cast aluminum pole cups, handles and hardware. EV-patented Signal Synchronized Transducers (SST) waveguide design provides precise and consistent coverage across all system configurations. Waveguides are custom-designed and optimized per ETX model.DESIGNED, ENGINEERED, TESTED, AND ASSEMBLED FOR ULTIMATE RELIABILITY BY ELECTRO-VOICE IN THE USA.