J&M Audio Rokker 330 Watt 2 Channel Amplifier Kit for 2014 and Newer Harley-Davidson Street Glide, Ultra and Trike models - JAMP-330HC14 Complete kit includes 330 Watt 2 Channel Amplifier, Mounting brackets, fasteners, wiring harnesses and complete instructions. This Class "D" 2 channel amplifier puts out 165 watts of power per speaker at 2 ohms rating. This Amplifier measures 7.25 X 4.75 X 1.75 No Radio Software Flash is needed for this amp to work correctly. Fits 2014 and Newer Harley-Davidson Street Glide, Ultra Classic, Ultra Limited and Tri-Glide Trike models.