I was watching The Matrix: Reloaded tonight, and I noticed something bad. I think my subwoofer has blown. During scenes with heavy bass I noticed it was sort of distorted. I can't really describe it but I think I know what a blown speaker sounds like. My fiancee bought me a HTiB last christmas. It's the good Sony that is 600w total. The HTiB is under ext Best Buy warranty. I have some questions: 1) How do I know for sure if it's blown? 2) I keep the sub vol at around 1/2 way and have always had it that way since I got it. How could it have blown? 3) Any suggestions on how I should proceed? The main thing is that if it is blown, I'm not sure what to do. Sony doesn't make this model anymore, and the comparable model now only has a 75w sub and mine is 100w. So I don't want to get something less than I already have in return. Please advise.