This has probably been discussed ad nauseam, but.....
Why, with a Vertex disabling HDR metadata and my UB820 sending SDR2020, does my 620 not fade to black on 4K/HDR movies?
The iris closes some, but not enough to fade to black.
Video: JVC RS620/X9500 projector, Stewart ST130 screen, Panasonic ub820 UHD player
Audio: Anthem AVM60 preamp, Anthem MCA525 amp, B&K Reference 125.7 amp
Subs: dual SVS PC-12 cylinders
Speakers: RBH SV-661R and SV-661CR fronts, Jamo 626k4 side/rear surrounds, DefTech DI6.5R heights