This is a full range class D audio amplifier and is specÆd at 200 watts RMS per channel X2 channels, (400w total) driven continuous into a 2 ohm load @ 14.4vdc The ROKKER XXR amplifier's settings have been dialed in & optimized for this exact speaker configuration, to provide the on-highway volume, clarity and overall performance that most riders only dream about Amplifier mounts to the custom made stainless steel bracket system, to provide solid and secure mounting inside the Harley batwing fairing Custom made plug-n-play wiring harnesses are included with this amplifier kit, top quality heavy gauge power/ground wires are used for the fused battery connection, along with all necessary mounting hardware & complete installation/operation instructions Amplifier measures 7-1/4ö X 4-3/4ô X 1-3/4ö. AMP 400W 2 CH 06-13SG ULA