I was watching Serenity last night (great bass, BTW) and noticed that my sub rattles during deep bass passages.
Actually, I've noticed this issue since I built the DIY Atlas 15 sub, but didn't realize it was the driver itself that rattles, not the stuff in my cabinets or on the shelves or the wheels on the sub. I played the same scene over and over again until I was certain that it was the driver. I even put my ear right next to the driver. It only seems to occur on deep, sustained bass notes.
The rattling is quite noticeable and somewhat distracting, so it needs to be fixed. Anyone have any idea what could be causing this?