8" Ceiling Speaker, (Buspro)
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/audio-systems/hdl-xc62-kv-hdl-ns83-kv-hdl-nw82-kv-hdl-siw82-rhyt
https://b2b.hdl-automation.cz/en/support/products/data-sheets/buspro/audio-systems/hdl-xc62-kv-hdl-ns83-kv-hdl-nw82-kv-hdl-siw82-rhyt