2 Gen 3 5"x 7"front speakers for HD 1998 to 2013 Road Glide Power Handling: Conservatively rated at 100 Watts RMS (150Watts max output power) Design: Features and upgraded 1" titanium tweeter and a vented magnet to manage heat Amplifier Requirement: 2 ohm -stable Amplifier or radio designed to handle 2-ohm loads. Exclusions : not compatible to with factory/installer CVO amplifiers or saddlebag lids made for 5"x7"speakers.