PA-2400 Power Amplifier, 1200 Watts 4stereo RMS Output Power (&lt;400Hz THD&gt;0.01): 55Watts x2, 8stereo RMS Output Power (&lt;400Hz THD&gt;0.01): 45Watts x2, Max Peak power: 1200 Watts Unit size: 18.9x3.54x11.42 inches Output Circuitry: Class A/B Input: XLR,  (6.35mm), Output: Speakon, Banana binding post Front Controls: AC switch, Ch.1 and Ch.2 Gain Knobs