O2 AIR-T700 Oxygen-Audio AIRT700 2 Channel AMPLIFIER, 2 x 330 Watts 2 Channel Amplifier Nominal Power@12.5Volts-4ohms...2x195W Nominal Power@12.5Volts-2ohms...2x330W Nominal Power@12.5Volts-4ohms...1x600W Pass band@+/-3dB...10Hz-40KHz