This is Bob Carver Magnetic Field Power Pro amp in very very thin (1.75 in ) standrd rack length model. Do not be fooled by thiness of this unit. This unit has mega punches from such a skinny body. This uniit was built in USA with Good Ole USA quality. It has delight highs and very deep bass with punch that you only expect from heavy weight boat anchor amps. Highly recommened. This unit drives my center channel in bridge mode (300W!!). I love it.