Join Date: Sep 2000
Location: Stewart Filmscreen Corporation. USA
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Please be advised that your new GrayHawk will be closer to 0.9 gain.
For THX Micro Perforated sound screens we increased the translucent reflective optical coating to a gain of almost one. Then we perforate the screen with approximately 30,000 holes per square foot and leave about 10 percent of the screen surface on the floor. The net reflectivity is .9
As for the gain of unfinished drywall???? I have noticed that some drywall is darker than others.