Product Detail An impressive combination of a rugged, high-output design and the latest circuit technology Independent defeatable clip limiters reduce distortion without sacrificing peak performance Selectable low-frequency filters boost system response, protect speakers, ensure low-end tightness Direct-mounted to the heat sink for optimum thermal coupling & cooling Low-noise variable speed fans with rear-to-front air flow keep amplifiers and racks cool . The "QSC RMX2450 Stereo Power Amplifier" is best product for you. We recommended QSC RMX2450 Stereo Power Amplifier