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The original was posted on /r/hometheater by /u/Lopsided_greenery on 2023-09-26 12:51:16+00:00.

Lots of talk about ceiling speakers needing, at least, pivoting tweeters to direct at the MLP. But how much do these tweeters need to tilt by to get on axis? Dolby atmos guidance suggests speakers need to be around 45 degrees, but can go to 55 degres. So do the speakers need to angle by at least 35 degrees to compensate for this?

Most ceiling speakers only seem to do 15. What’s people’s thoughts?