96-2013 HARLEY DAVIDSON MOTORCYCLE CAR STEREO RADIO AMPLIFIER TRUE 420 WATT RADIO STEREO ADAPTER Prv/Stetsom Micro size massive power amplifier. Over 400 True Rms Watts! Nothing else like it MICRO SIZE 2" X 5" X 6" fits in fairing easily Built in high/low pass filters allow the use of this amplifier for a broader variety of applications Rated RMS Power at 14.4 V at 2 Ohms: 4 x 105 Watts TRUE 105 X 4 420WATTS, TWICE THE POWER OF KENWOOD OR CLARION 1/2 THE COST OF ROCKFORD