You expect to get the best sound from your new speakers, but even the best speakers create vibrational distortion. Eliminate that speaker panel distortion by applying Dynamat Xtreme to the sheet metal surrounding your speakers. Kit comes with two 10 x 10 self-adhesive sheets.
My sound bar rattled like crazy whenever there was the tiniest bit of bass and killed the music. I put these in and it sounded so much better that I went out and got new speakers with heavier bass. The only thing that sucks is the shiny, obnoxious, foily appearance that sticks out on my black sound bar. Definitely get this if you have any kind of sound-related buzzing or rattling.