Hopefully I'm not bring up something that has already been discussed... And I'm just tossing this out there... happy to hear all the reasons it's a bad/wrong idea
I myself have had the black velvet in my theater for 10 years. It was a HUGE improvement over the existing non-treatment (walls). However, I ran across some additional stuff on human perception of light intensity, which made me ask... with regard to material around the screen...
Are we doing it wrong?
Wouldn't a gray velvet (if such a thing exists) be best?
Look at these
I'm thinking that gray would make the black levels on the screen look amazing.
Going all black is much more than just improving your actual image, but making your room disappear as much as possible. The closer to ZERO visual distractions in your field of view, the more immersive the visual experience will be since you don't have ANYTHING else fighting for your visual attention and the best way to do this is black, and black velvet in particular.