I am helping a friend with building his sports bar. We have inceiling yamaha speakers for the main area. He is doing a separate room with 2 projection screens and wants to do surround sound. I am going to use the yamaha ceiling speakers for surround duty. I have been looking at jbl l820 and matching center on wall speakers for the front lrc speakers. The problem is with the way the walls are behind the screens ( very complicated ) they might not mount on the wall correctly. What would potentially work are an outdoor type speaker with metal mounting bracket that can swivel. There are plenty of them available, what i am looking for is speakers with that type of flexibility that would be good enough quality for a decent hometheater .They also must be able to get to pretty high volumes. If anyone has any suggestions i would be glad to listen.