Hhmm! $470k for the Atmos system and it doesn't look to have a particularly high WAF.

I sincerely hope M's Atmos setup looks nothing like that.

Main system - Sources (Kodi-HTPC, Vero 4k, FireTV, Sat) into Trinnov Altitude 32 (8-16) (+Roon), Trinnov Amplitude 8 amp & Vivid Audio (Giya G3, V1.5) and REL Stentor III speakers. Others: F80 + Raspberry Pi and other Pi systems.