Russound P75 2 x 60W Amplifier Built For Multi-Speaker Applications With Volume Controls Automatic Switching Between Two Sources With Signal Sensing Front Panel Volume And Balance Controls Channels Are Bridgeable To Create One Channel With 160 Watts Of Power A Class A/B Amplifier Rated At 75 Watts Per Channel Into 4 Ohms, And 60 Watts Into 8 Ohms