BOSS Audio MR1002 Marine Grade 200 Watt, 2 Channel, 2/4 Ohm Stable Class A/B, Full Range Amplifier 100 W MAX Power @ 2 Ohm x 2 Channels 50 W MAX Power @ 4 Ohm x 2 Channels RCA Low Level Inputs, High Level Inputs Variable Input Gain Control THD @ RMS Output: 0.01, Channel Separation: 60 dB, Signal To Noise Ratio: 90 dB, Frequency Response: 12 Hz  22 kHz Dimensions: Depth 5.3 x Width 9 x Height 2 6 Year Platinum Online Dealer Warranty Class AB Fully marinized IC amp Overload & speaker-short protection 2 channels