Reserve amplifiers are the next step in performance and value. Taking advantage of our tried and true class A B full range and improved efficiency Class D monoblock platforms Reserve amplifiers continue down the road of reliability and longevity you know well. Satin silver chassis engraving and accents teetering on the edges bring a high end appeal to traditional performance. Are you using an original or factory radio No problem these amplifiers are equipped with an Automatic Hi Level Signal Sensing Turn On. There is no need to run a remote wire turn on this amplifier will automatically detect the sound signal and turn on and off the amplifier. Hi Level Input only, Reserve Series Class A B Full Range Amplifier, Max Power 1200 Watts, RMS Power at 4 150W x 2, RMS Power at 2 220W x 2, , , , , , , Weight (lb)7.15, Height (in)10.3,Width (in)16.4,Depth (in)4.8