I have an older Samsung soundbar that doesn't have mounting screw holes on the back so needs support from underneath. It worked great. My only suggestion is to install it with the legs still on your TV (before you mount it) - put the legs on a pair of 2x4s etc so it's high enough to fit a soundbar underneath and the to find the right height. so your soundbar fits snugly against the bottom of your TV. To adjust the height you have to loosen the screws that attach the TV to the bracket and I don't like the idea of doing this while it's mounted to the wall.
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