As to setting to stop vibration, that's called reducing the volume. Sound bars are extremely popular to replace today's move to anemic speakers.
I have a LG 39LB650V and having the same problem as a lot of people with the speakers vibrating. I have read somewhere that the sound/audio settings can be set so that you can not the vibrating, I think it was mentioned by using the equalizers. Is there anyone out there that has the same problem with the TV and have they solved it?
Any help possible to would be great.