Features: 【Professional HiFi】 equipment Our car audio amplifier goes to the authenticity of sound, distortion rate of 0,07%, very noise level transducer, parameters and executive power of reproduction power. 【High Power】 Rated Power 4Ω per channel 100 W, 2-channel bridges with rated power up to 300 W, sound promoting transmitter and subwoofer, enjoy high-quality sounds. 【Better Class AB Amplifiers 】Class AB HiFi Amplifier in Sound, Reproduction and Design is better than Class D Power Amplifier. 【Multiple protection】 30A double fuse, short circuit, microcomputer temperature protection, connected against short circuit of lead line against incorrect signal. 【Clean aluminum housing】 Integration of pure aluminum radiator housing, one unit of shocks and falls, inna safety protection. 【Solid and safe】 Reinforced multi-layer printed circuit board, decomposition and parts, safe and more stable, are not afraid of any bad road conditions associated with unevenness and vibration. Technical data: Black color Material: Aluminum Alloy Output power 4Ω: 110W*4 Bridge power 4Ω: 200W*2 Distortion Ratio: 0,07% Signal-to-noise ratio: 90 dB Output voltage: 0,25 V-6,0 V Applicable: 50 Hz-300 Hz Frequency Response Range: 20 Hz to 20 KHz Product Size: 320 * 220 * 50 mm / 12,6 * 8,6 * 1,9 inch Item Weight: 2kg/70,5oz Packaging Size: 425 * 285 * 80 mm / 16,7 * 11,2 * 3,1 inch Package Weight: 2,3kg / 81,1oz List of things to pack: 1 * Car Amplifier 1 * Fuse 4 * Screws 1 * User Manual