Klipsch 6-1/2" 140-Watt Passive 2-Way In-Ceiling Speaker (Pair) White RIC-65 - Best Buy
Best Ceiling Speakers for Dolby Atmos (and why they matter)
How does in-ceiling, Elevation and up-firing speaker rank for Atmos in a 5.2.4 config? Well I think I might be crazy enough to find out : r/hometheater
4 Best Ceiling Speakers for Dolby Atmos in the UK - Guiding Tech
Dolby Atmos Best Speaker Setup Practices In the Home | Audioholics
RP-280 5.1.4 In-Ceiling Dolby Atmos® System | Klipsch