Onkyo SKH-410 Dolby Atmos Upfiring Speaker System - Great Condition | eBay
Amazon.com: Pioneer SP-T22A-LR Add-on Speaker designed by Andrew Jones for Dolby Atmos,Black : Electronics
SP-T22A-LR - Pioneer Home USA
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