Car Audio Power Amplifier 4 Channel Aluminum Alloy Amp for Car Speakers Heat Dissipation Features： 1、Efficient Cooling System: The amplifier is housed in a pure aluminum casing that effectively reduces the rendering of current and is equipped with ventilation ports for strong overall heat dissipation. 2、Durable Terminals: The amplifier features nickel plated wiring terminals, anti oxidation and provides excellent contact performance. The terminals are sealed to prevent short circuits caused by accidental contact, ensuring a safe connection. 3、Safety Copper Fuse: The amplifier includes safety copper fuses. In the event of unstable amplifier voltage, the copper fuse will automatically disconnect the power to protect your vehicle from any potential damage. 4、Dual Coils Transformer: The amplifier is equipped with a dual coil transformer that rejects any potential short circuits. This ensures that the amplifier operates with sufficient power, making it more efficient, safe, and stable. 5、Multiple High Capacity Capacitors: The amplifier features multiple sets of high capacity capacitors that store a large amount of energy. This ensures stable operation of the amplifier and extends its lifespan, providing a reliable performance. Specification： Item Type:?4?Channel?Amplifier Material: Aluminum alloy Package List： 1 x 4?Channel?Amplifier 4 x Screw 1 x?Other Accessory 1 x Manual