Features： 1、4 channels power amplifier, maximum 3800W strong power, which provide you with super thrust, very practical. 2、Pure copper inductance coil, improve the conversion speed, balancing the input circuit, make the chip resolution better, and the sense of hierarchy more vivid and rich. 3、The external thickened heat sink and the design of heat dissipation holes make the contact surface between the power amplifier and the air wider and heat dissipation faster. 4、Slim body, simple and elegant design, the whole body is made of aluminum alloy, can provide clearer, stronger and more powerful sound. 5、Mini HiFi car power amplifier board, DC power input, suitable for all kinds of car with 12V voltage. Specification： Condition: 100% Brand New Item Type: Car Audio Amplifier Color: Black Material: Aluminium Alloy Distortion: <0.01% Rated Power: 4x100w(4 Channels, Each Channel is 100w) Peak Power: 3800w Impedance: 2-4Ω Frequency: 20HZ-20KHZ Signal to Noise Ratio: >90dB Sensitivity: 150m V Size: Approx. 32x22x6cm/12.6x8.7x2.4in Package List： 1 x Car Audio Amplifier 2 x Fuse Sheet 4 x Screw