I just received my SVS and noticed one oddity. Of course I put in Toy Story 2 because I've heard plenty about the low bass frequencies in the beginning(it's all true!). The oddity is this: When using the chapter skip function on the DVD remote to skip past the opening trailers, each one produced a low-volume thump from the sub. Several other DVD's did the same. These 'thumps', if you can call them that, were low in volume, and not too low in frequency( I would guess 50-100 Hz). I never had this in my previous subs(Hsu VTF-2 and Velo). Any explanation would be appreciated. Thanks.