I purchased the EP500 about 4 months ago. Over the last few weeks I've been moving furniture and the subwoofer around and happened to be down on my knees in front of the sub while it was playing. I noticed a metallic rattling noise coming from behind the cone when it was vibrating. The rattle isn't noticeable from a distance so it doesn't affect the sound from my listening position - but still, it does rattle and I'm concerned there could be other issues.
Has anyone else noticed this rattling in their sub? Should I be concerned? I would rather not have to pay the shipping/delivery charges to have it inspected under warranty.
Thanks for any advice!
Bryan
