Posting a comment/question from another thread for JTR S8 for Atmos duty...
I concur with your "height" vs "top" assessment. I ran $250/speaker for FH and RH in April during the construction of the HT for experimentation. My opinion of Atmos was, well it's interesting but hardly noticeable (could have been speaker dispersion issues). I switched over to $100/speaker ICs in August and was BLOWN away by the difference in Atmos sound stage.
So this brings up my question. My current ICs have aimable woofers and tweeters at about 15-30 degrees. The new speakers would be slanted boxes on the ceiling and have similar angles with the slanted baffles (15, 20, 30 degrees or so TBD
). This would also help with clearance behind the drywall and diminish some sound transfer as one IC pair currently does not have back boxes. Mounting enclosures to the ceiling will lower them into the listening room by at least 7" as well. I don't want to mess with a great thing that's working for me, but I long for higher SPL, higher efficiency, wider FR speakers that are more linear and dynamic up there (and matched to the rest of my system).
So would you classify these as height speaker or a top speaker? The angle to MLP specs of a "height" and a "top" overlap for the most part. If it's "on" the ceiling, 7" down below the ceiling, and angled baffle at as high as 30 degrees....I'm wondering if the sound coming from "above" will lead back to where I started with less than impressive results: pseudo height speakers? It seems like a grey area.