Hifonics ZXi 4006 2-Channel 800-Watt A/B-Class Zeus Amplifier RMS @ 4-Ohms: 2 x 100-Watts RMS @ 2-Ohms: 2 x 200-Watts RMS @ 4-Ohms: 1 x 400-Watts Crossover And Switching: Variable 12dB Octave Hi-Pass Variable 24dB Octave Low-Pass 18dB Bass Boost at 45Hz Inputs and Diagnostics: Variable Input Level Control Power and Diagnostics LEDs DC Short Circuit Protection Over-Load Protection Connector Types: Unbalanced Inputs (RCAs) Full-Range Line Outputs (RCAs) Molded 4-Gauge Power Inputs Molded 10-Gauge Speaker Outputs