BEHRINGER Power Amplifier (NU3000) Delivers 2 x 1500 Watts into 2 Ohms; 2 x 900 Watts into 4 Ohms; 3000 Watts into 4 Ohms (bridge mode) and weighs less than 7 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 "Zero-Attack" limiters offer maximum output level with reliable overload protection Built-in stereo crossover with low-cut, high-cut and full range mode