The Audio Systems CE4800D Class Amplifier is an excellent addition to any car audio system. It enhances the sound of my favorite music, making driving more enjoyable. The amplifier is powerful, easy to install and adjusts to different sound levels. The build quality is excellent too, giving assurance of product longevity .The cons are that it REQUIRES a bit of technical know-how to install and adjust sound levels, and it may be too pricey for some. Overall, a must-have for any music lover lookinSee full review