Kenwood KACM8005 Kenwood KAC-M8005 800W RMS 5 Channel Class D Marine Boat Stereo Amplifier Free ShippingWhat's Included:5-Channel marine amplifierThree 30A ATO fuses (installed)Rubber control cover2.5mm Allen wrench4 Self-tapping screws (M4 x 16mm)Instruction ManualWarranty CardCEA-2006 compliant conformal-coated circuit board ? suitable for power sports and marine applications variable low-pass filter on subwoofer channel (50-200 Hz at 24 dB per octave) separate variable high-pass filters on front and rear channels (50-200 Hz at 12 dB/octave) variable bass boost on sub channel (0-18 dB at 40 Hz) preamp and speaker-level inputs 9"W x 2-3/16"H x 7-3/8"D