Great Horns ! I bought 12 as the PA system for the commentator of our local Beach Racing/Autocross club and they were such a success I have to get some more for a local football club , WE use them for commentary on the motor sport and I set them in pairs on stands and about every 50 metres along the beach and the spectators have been very impressed , they have various options on the back to vary the wattage when driven by a line amp and seem just about as weatherproof as you can get ! Highly Recomended