It can't be a phase issue. With a single DVC sub wired on a single channel of an amp, it not a "slightly out of phase" thing. It's not a not moving much thing. It's not a doesn't sound right thing. It's an all or nothing thing. If the coils are wired in phase, the sub moves like it should. If the coils are wired out of phase the sub doesn't move at all.
Shit ton of port noise and sounds like a possible air leak as well. What side of the camera is the mic pickup on? If it's on the left, that could explain the extra noise when you're on the right. What's the shutter speed of the camera? If it's too slow it will look weird.