Behringer EUROPOWER EPX4000 Power Amp 2 x 2,000 watts into 2 Ohms; 2 x 1,200 watts into 4 Ohms; 4,000 Watts into 4 Ohms (bridge mode), ATR (Accelerated Transient Response) technology for ultimate punch and clarity. Ultra-light, ultra-low noise and ultra-efficient switch-mode power supply for noise-free audio. Superior transient response and low power consumption. Switchable limiters offer maximum output level with reliable overload protection. Detented gain controls for precise setting and matching of sensitivity. Precise Power, Signal and Limit LEDs to monitor performance. XLR , 1/4'' TRS and RCA input connectors for compatibility with any source Professional speaker connectors and "touch-proof" binding posts support most speaker wiring systems. Built-in subwoofer/satellite crossover for more flexibility. Independent DC and thermal overload protection on each channel automatically protects amplifier and speakers. "Back-to-front" ventilation system including air filter for reliable operation. $199 OBO