Power Acoustik CPT4-1200 4-Channel 1200-Watt MOSFET  2-ohm Stereo, 4-ohm Bridged  Tri-Mode Capable Amplifier 2-ohm Stereo, 4-ohm Bridged Stable Class A/B Selectable 45Hz, 6/12dB Bass Boost Tri-Mode Capable Variable 12dB 50-250Hz HPF MOSFET PSU Transistors ? Regulated PWM Power Supply ? Three-Way Protection Circuitry (short, thermal & overload) Pre-Amp Outputs ? 200mV-8V Low Level Inputs