About this item High efficiency -------Amplifier, power loss is significantly reduced, ensuring high efficiency, multiple protections, and extending the service life of automotive power amplifiers. Design: Professional manufacturing, exquisite workmanship, to ensure stable performance and high reliability, making sure safety use. Simple installation --------- The installation is simple, no complicated operations, easy to use, time saving and labor saving, great car audio system part. Maximum Output Power 4 Ohms: 60W RMS x 4CH. Maximum Output Power 2 Ohms: 90W RMS x 4CH. 【Simple Installation】The installation of the car speaker amplifier is simple, no complicated operation is required, convenient for using, save your time and energy. This amplifier has a proper size design and comes complete with all required mounting hardware for easy installation High Efficiency: Power loss is significantly reduced to ensure high efficiency, multiple protection, extending the service life of the car amplifier.