Do Wall-Mounted Speakers Work in an Atmos Setup?

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Q I’m upgrading my home theater for Dolby Atmos and have noted that various speakers are now being specifically marketed for this purpose. For example, I’ve seen compact speakers with sloped,
downward-pointing baffles that are designed to be wall-mounted near the ceiling. Are these as effective in delivering overhead effects as an in-ceiling or Atmos Enabled speaker? Also, could an Atmos Enabled speaker be mounted in the same manner near the ceiling? —R. Hatton, via email

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