Hey hey you you get offa mah cloud!
Anyway, I'm going to build and install a hanging cloud above my mixing position in order to make my luxury mixing room (read "apartment living room") a better listening experience. I'm also going to put absorbers on the walls at the appropriate first-reflection points.
I'm wondering what determines the precise placement, height wise, of the cloud. I am thinking about a 4" absorber with a 4" space between it and the ceiling. It may be practical for me to install it a bit lower. That is not an aesthetic problem, the ceiling is tall enough, but I don't want to make one of those fundamental mistakes.