Question about noticeable abnormal sub noise...normal??

[brazosdog02]

I have a pair of LV12 subs. When listening to one particular movie, there is a very noticeable 'whirring' noise coming from the subs. Its not a hum or a whine.....its in between and sounds like background wind noise but its not. What in the world is it and how do I stop if its not normal? There is also a 'hum' although very subtle. Im trying to verify if it does it with just this movie or what.


When the movie is PAUSED OR MUTED there is no noise whatsoever. It seems to do it with both BD and Dish sources. What is the deal???