Full range class D audio amplifier 175 Watts RMS per channel times two channels (350W total) 2 OHM load at 14.4V Provides on-highway volume, clarity, and overall performance Mounting is solid and secure due to the amplifier mounting to the custom made stainless steel bracket system inside the H-D fairing Designed for use with stock H-D 4.3 STD, 6.5GT or new GTS touch-screen radio, with no special flash needed Plug-n-play wiring harnesses are included with kit Heavy gauge power/ground wires are used for the fused battery connection which are included Necessary mounting hardware and complete installation instructions are included Amplifier measures 7-1/4" L x 4-3/4" W x 1-3/4" T