I'm having a bit of an ear sore with this new hulk of a sub. Bought it off newegg a few months ago and have been having this ever persistent rattle/wobble noise. I will post a vid, or link to the vid that demonstrates the noise. It occurs during movies/music at all settings on the sub I've tried and from normal listening volume and up.
All of my speakers are connected via standard speaker wire leading into an SDR-DH800 receiver which is in turn connected to a Sony blu-ray player/Sony 55 inch TV/Xbox 360.
Receiver: http://www.amazon.com/Sony-STR-DH800-7-1-Channel-Audio-Receiver/dp/B001YQ9T8I
TV: http://www.amazon.com/Sony-Grand-KDS-55A2020-55-Inch-Projection/dp/B000NK76VS/ref=pd_sxp_f_pt
http://www.youtube.com/watch?v=-lhVNGGxKB4
No embedding I guess... well link is there, the sound occurs a lot in the first 20 seconds.
I should add that it is nothing that is on top of it, or in the general vascinity. I have isolated the sub and the noise still emanates from it.