Rockford Fosgate M2-300X4

4-Channel Class-D Marine Amplifier 300 watt RMS Power Rating: 4 Ohm: 50 watts x 4 ch. 2 Ohm: 75 watts x 4 ch. 4 Ohm Bridged: 150 watts x 2 ch. Frequency Response: 20Hz - 20,000Hz Front Channels High-Pass / Low-Pass Filter (12dB/Octave): 50Hz - 250Hz Rear Channels High-Pass / Low-Pass Filter (12dB/Octave): 50Hz - 250Hz C.L.E.A.N Set-up Top Mounted Controls 2/4 Channel Input Selection Switch Auto-Sense Turn On Conformal Coated Circuit Board UV Stable Powder Coated Cast Aluminum Heat Sink Balanced Differential Inputs RCA Pass Through Outputs Short Circuit / Over Current Protection Dimensions: 1.9" (49mm) H x 6.8" (173mm) W x 10.1" (255mm) D 1-Year Dynamic Autosound Warranty