The Behringer NX1000 Power Amplifier with Smartsense   

Ultra-Lightweight 1000-Watt Class-D Power Amplifier with SmartSense Loudspeaker Impedance Compensation. • Delivers 2 x 500 Watts into 2 Ohms; 2 x 300 Watts into 4 Ohms; 1000 Watts into 4 Ohms (bridge mode) and weighs less than 7.3 lbs / 3.3 kg • Ultimate reliability through revolutionary cool-running High-Density Class-D technology with "near-zero" thermal buildup • Ultra-efficient switch-mode power supply for noise-free audio, superior transient response and low power consumption • Built-in stereo crossover with low-cut, high-cut and full range mode • SmartSense Loudspeaker impedance compensation features fully linear frequency response at any speaker load impedance • "Zero-Attack" limiters offer maximum output level with reliable overload protection • Detented and illuminated gain controls for precise level setting • Precise 4-segment Signal and Limit LEDs to monitor performance • XLR and 1/4'' TRS combination input connectors for compatibility with any source • Professional twist-lock speaker connectors for ultimate reliability • Independent DC, LF and thermal overload protection on each channel automatically protects amplifier and speakers without shutting down the show • “Back-to-front” ventilation system prevents thermal buildup for reliable operation