Kalyan J

I have one year ago brought a Creative speaker set 5.1 5200 model. From the past week days i am facing a problem. I generally keep my volume at 4 the highest being 8 of the wired audio controller connected to the speaker set, and it was good enough. Now when I started getting low sound I thought that the input audio was low so raised the volume to 5 and it was good, and now suddenly it takes time for the audio levels to change. When I increase the volume it takes 3, 4 seconds for the sound to gradually change, and when I raise it to 5 it exceptionally increases as if I kept it at 7, and then even if I slide the volume down very little, to a very small extent that one can't even notice, the sound suddenly falls down greatly, so that I can't even hear. Any suggestions? If I need to get a new controller for it, its ok, and would be better if anyone can tell me where I can find Creative spares