Probably not a technical term but.... My sub seems to be cutting out during quiet parts of films, even when it shouldn't as there is still some bass signal. That is to say it goes into standby mode and then comes back in again when there is some work to do. It does this switching off with an audible click and also clicks when it comes on again. As you might imagine this is very distracting. It also affects the overall sound of the movie by doing this too. Does anybody have any ideas? Speakers are set to small, and the Sub is connected via LFE jack (so crossover shouldn't function??). It's a JBL scs series.