Hogtunes REV Series 200 Watt 2 Channel Amp Kit for 1998-2013 Harley-Davidson Touring models - REV 200-AA 200-watt, 2-channel amplifier (100W x 2) Includes upgraded, 100% plug-n-play harness Complete with everything needed for installation Ultrasound Rear Speaker Adapter Kit required to mount amp in FLTR models 2-Channel Amp Mounting Kit required if this is the second Hogtunes amp on FLHT/FLHX models