GTD Audio 2 Channel 6500 Watts 1U Stereo Professional Power Amplifier AMP T-350 New Generation Amplifier Technology, Supper Light Weight, Powerful, Long-Lasting with Crystal Clear Sound quality & Ultra low Noise Design ATR (Accelerated Transient Response) technology for ultimate punch and clarity 700 Watts (2 x 350 ) @ 8 Ohms RMS, 2 x 650 Watts @ 4 Ohms RMS, 6500 Watts Peak Frequency response 35Hz  15kHz Dimensions (WxDxH): 17 x 9" x 1.5, Weight: 9 lbs