Boss Audio Systems® offer complete audio solutions for your bike with the all-new Stage Kits. The BHD3F is an all-in-one audio system package that includes a 4-channel class D amplifier, amplifier mounting brackets and 6.5 inch speakers with grilles. The BHD98 and BHD14 saddlebag kits include 6 inch x 9 inch rear speaker upgrades which are designed to work perfectly with the BHD3F audio system by simply plugging into the BHD3F amplifier and giving you a complete audio upgrade without the hassle of serious modifications or paint. The included cut-out template makes the cutting painless and installation a breeze. Boss Audio Systems Stage Kits deliver outstanding sound and performance everyone wants at a price you can afford.