1、High Quality Material: Car amplifier is made of high quality metal material, rustproof, high strength, not easy to deform, sturdy and durable. 2、Excellent Performance: Professional manufacturing, exquisite workmanship, high efficiency, stable performance and high reliability. 3、Function: Car audio amplifier provides good heat dissipation to keep your car audio sounding smoothness, maintaining the high sound quality. 4、Universal Fitment: According to original standard, 4 channel amplifier is universal for car audio system, has a long service time. 5、Simple Installation: The installation is simple, no complicated operation is required, convenient for using, save your time and energy. Item Type: Car Audio Amplifier Material: MetalOutput Power: (13.8V, 4O, RMS) 4x80W Output Power: (13.8V, 2O, RMS) 4x120W Power Output: (13.8V, 4O, RMS, Bridge) 2x250W (Bridge Pattern) Frequency Response: 20Hz-20kHz Total Harmonic Distortion: ＜0.1%(1kHz) SNR(+A): ＞92dB Input Sensitivity: 0.18-7V Filter Configuration LP: 40-250(Hz) HP: 40-250(Hz) Fuse: 25A X 2 Fitment: Universal 1 x Car Audio Amplifier 1 x User Manual 2 x Hex Wrench 2 x Fuse 4 x Screw