ME-6005D 5 Channel Amplifier - 600 WattsFeatures:Waterproof IP5Pigtail wire harness and connectionHigh-efficient full range class D operationSelectable high-level and low-level inputSignal sensing and 12V remote out short thermal and overload protectionDIP switchable crossoverGain control for front and rear channelSwitchable mode for 4-channel model: 2CH/4CHSpecifications:Number of Channels - 54 Ohm RMS Power - 50W x 4 + 150 x 12 Ohm RMS Power - 75W x4 + 300 x 1Frequency range: 20Hz-20KHzDimensions (W x H x D) 11.4" x 4" x 1.75" (290mm x 102mm x  44.5mm)*Sold as an Individual