The Boss AR4000D Armor 4000-Watt Monoblock Class D Car Audio Amplifier can supply 4000-Watt of MAX power. It features Class D and Digital Technology, 1 Output Channel, a Soft Turn On Circuit, a Master/Slave Switch, Thermal Overload and Speaker's Short Protection, Power and Protection LEDs, 2 RCA Line Outputs, an Input Sensitivity Selector, and a Remote Bass Level Control. The Boss AR4000D Armor 4000-Watt Monoblock Class D Car Audio Amplifier has the juice to provide your system with amazing power. Not only is the Shaker Series Amplifier Installation Kit a true lifesaver, but it also is designed to make your entire sound system work at peak performance. If you want your amplifier to operate at its best you simply cannot use inferior parts and accessories. Our exclusive, pre selected set of tools includes CopperCure highly conductive copper wires that are oxygen free to ensure clean and consistent power transfer. These high performance copper wires are wrapped in the durable and flexible SurfaceFlex wire jacket for effective cable routing. The CRB fuse holder has been specially plated with nickel for corrosion protection against the elements. Last but not least, distortion and external noise are reduced to a minimum with the Strand Interaction Conductor.