I don have any architectural drawings for my current installation job. How can I determine the correct elevation angle so I can preset the rigging in our shop?
A. You’ll need a digital inclinometer. They are available as digital levels for ~$60 at your local building supply store. The shortest possible size is best. Get a six inch torpedo level if you can find one. As shown in the drawing below, measure angle A2. Stand where you want the speaker to focus. Look along the length of the level and line it up to the desired speaker location. Use the ‘Hold’ button on the level to take the reading. If you’re using a torpedo level, hold a long straight edge against the level to take your reading. Angle A2 equals angle A1, the angle you need.
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