Run some test tones and find out where the vibrations are that cause the buzzing and either shim the two surfaces with cardboard or you can also tape the seam ... the back of my TV has about 10 little pieces of cardboard shoved into some of the various panel seams that were vibrating.

Metallic A/C ducting tape works great in hidden areas, plyable caulking also works well.

Rick
Our Room

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