C1300 has a capacity of one channel of 625 watts into a 70 Volt load It does both 8 ohm and 70v: 2 channels of 8 ohm OR 1 channel of 70v, it will not do 8 ohm and 70v at the same time. Professional DSP amplifier for live and mobile application Fully integrated professional speaker processing with FIR drive technology Market-leading acoustic performance and rock-solid reliability Intuitive, simplified set-up, control and operation in SONICUE sound system software with firmware 2.0