Hey guys. I bought an Axiom EP350 sub on ebay. I'm having problems with it rattling during movie playback. Its fine when playing music. I've talked to Debbie and she suggested a few things..which I've tried, a little better but with extreme lows..it still rattles. I'm using a Denon x2300w receiver. I have my sub level at 0db...crossover at 80hz...and the crossover on the sub set at 80hz. I've tried turning the knob on the sub to bypass, and still get a little rattle. Are my settings way off? Am I missing something simple? Or is my speaker blown. It's an older model EP350. Would a slight crack in the cone cause this as well? If so, is that fixable or if its blown..is a new driver my only option? Thanks for any advice or tips!