SakoEBS

When I first bought the KSW10 it was worked great. The bass wasn't amazing, but it was enough to shake the room. However, over the past two years it has been slowly dying. To the point where I can barely hear any bass when the volume is at half. I don't use it to often, nor did/do I ever crank it. To be honest with you. I am a little upset. I didn't expect to spend this kind of money on a subwoofer, only to have to fade out in a little over 2 years. Also I tried calling Klipsch, but they told me to go through Best Buy (retailer I bought the sub at) and have them fix it. Which also did not impress me at all. The only thing I have personally tried is changing the fuse, but that didn't do anything. It has been over two years and my warrenty is up []. I'm wondering if there is anything that I can do to fix it? Besides sending it out for repairs through Best Buy. Thanks