I bought a sub 10 at best buy in madison, wi in mid December (Merry Christmas) It worked for 10 days and sounded great. We never turned it up (live in a small towne house) but yesterday it stopped producing sound. It never made any strange noises and the blue light is still lit, it just stopped producing sound. The blue light stays on even when the speaker is disconnected from my receiver. I replaced the fuse, which didn't appear blown but I wanted to make sure. It did not help. I plan on returning it tomorrow unless any one has any other suggestions. or any suggestions on a better 10 inch sub I may want to try instead?