Boss Chaos Wired Series 2-Channel Car Amplifier MOSFET 2-Channel Power Amp Number of Channels : 2-Channels Max Power: 100w x 2 @ 2 ohms RMS Power: 50w x 2 @ 4 ohms Max Power: 200W RMS Power: 100W Trimode Operation Bridgeable Remote subwoofer level control Low level inputs Line outputs Built-in crossover Variable gain control Input sensitivity selector Variable lowpass crossover Variable subsonic filter Phase shift selector Power and protection LEDs 0-+18db variable bass boost Signal-to-noise ratio: >90 dB THD: 0.01% Dimesions: 11-13/16"W X 2-7/16 "H X 7"L Series: Chaos RMS Power: 4 ohms: 50 watts x 2 chan. Frequency Response: 12-22,000 Hz Bass Boost Control: 0-18 dB bass boost