I bought this Klipsch subwoofer (KSW-10) new around 1998. It's worked great for 19 years until last month.
When I start watching TV or a DVD, I will usually (but not always) hear one or two loud "booms" in succession. It's not a part of the soundtrack. This happens about five minutes into the program but only if the sub hasn't been used that day. I'm getting settled into a show and out of nowhere it sounds like a heavy book hitting the floor from a top shelf. This never happened until recently and I made no changes to settings or setup. No sudden weather changes either. The sub still works, and I haven't heard it happen with music (even with a pipe organ CD.)
I did try to turn down the level from '11' (yes, it really does go to 11) to '6'. It still happens and now more frequently.
I searched Google, the FAQs and other forum posts and haven't turned up any answers. Has anyone run into this problem before?
Thanks