Power Acoustik CPT4-800 Crypt Series Class AB Amplifier: * 2-ohm stereo, 4-ohm bridged stable Class A/B * Tri-mode capable * Variable 12 dB 50Hz - 250Hz LPF * Selectable 45Hz, 6/12 dB bass boost * Frequency Response: 10Hz - 20Khz * Signal-to-Noise Ratio: 90 dB * Total Harmonic Distortion: 0.01 percent * 4-gauge power and 8-gauge speaker terminals * 200 mV - 8V low level inputs * Pre-amp outputs * Extruded aluminum chassis * Black texture finish with silver trim and cast metal badge * MOSFET PSU transistors * Regulated PWM power supply * 3-way protection circuitry (short, thermal and overload) * High pass, low pass and subsonic filters * 4-channel * 800W maximum * 200W x 1 at 4 ohms bridged * 80W x 2 at 4 ohms * 100W x 2 at 2 ohms