The (3) source integratable amplified ceiling speaker on a 2X2 full grill. It includes an electronic shunt to help conform to life safety NFPA72 regulations to be able to shut off from a central locations in the event of an emergency. The new amplifier has 3 sources - one stereo 3.5 mini jack line input, one POP aux input and one CAT 5 input for connection to the OWI MC4 mixer. A new advantage for the 2X2FG-HD2S62 is that the upgrade is modular. This flexibility is designed to provide multiple applications for different markets with a single product.