So my mother-in-law finds these speakers and gives them to me, and I'm not quite sure what I have - can anyone help me? It would seem that they may be a model C-40? I have opened the back panel but its difficult to actually get to the drivers. Here are some photos that took when I opened 1 of the speakers. These speakers look to have legs that attach. Any help, suggestions? Cabinets are a little marked up, but no gouges, etc. I am a newbie, so please excuse me if I am in the wrong area....Attachment 62737Attachment 62738[ATTACH]