GTD Audio 2 Channel 8500 Watts 2U Stereo Professional Power Amplifier AMP 1000 Watts (2 x 500 ) @ 8 Ohms RMS, 2 x 750 Watts @ 4 Ohms RMS, 8500 Watts Peak Front-to-Rear Airflow and Dual Cooling Fans XLR, " (6.5mm Jack) Balanced Inputs, Speakon and Banana binding post Outputs Frequency response 40Hz  15kHz Dimensions (WxDxH): 19 x 15" x 3.5, Weight: 35 lbs