Many things can determine the overall performance of a theater, and doors are a common problem. Many people think that by increasing the wall's performance, it will overcome any inadequacy of the door. Not true. In fact, you could continue to increase the wall's STC performance far beyond its acoustical rating and it would have no effect on the outcome. A standard solid oak door with perimeter seals has an STC rating of 25. As a result, the overall composite wall performance on this example is now only a STC-34. That's the same as a regular 2x4 stud wall with no insulation. An expensive theater just became more expensive to fix.
AV RoomService provides full service noise control design recommendations to not only increase the cinema's performance, but to assure every aspect of you client's noise control concerns are addressed early in the deign stages...not later.