The new "Road King" Super Stereo system for Road King models consists of a BRT 300X2 watt 2-channel amp and a pair of our killer Audio Lids coupled with a set of bass pounding Rockford Fosgate "Power" 6"x9" 3-way coaxial speakers. You really need to hear it to believe it! So hear what you been missing! A whopping 150 watts per channel to the 6x9’s in the rear! Like all of our systems, installation is very straight forward.