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SM 3 • Setup Guide This setup guide contains installation information about the Extron SM 3 speaker. The SM 3 speaker is a low profile surface- mount speaker system that features a three-inch full-range driver with very wide audio dispersion. Speaker mounting incorporates a separate wall mounting plate that can be attached directly to a wall stud or to an electrical box behind the wall.
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SM 3 • Setup Guide (Continued) Mounting to a Wall Box Install the speaker cables into the wall or conduit before installing the wall box. Place the wall box against the installation surface, and mark the guidelines for the opening on the wall.
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Product Category Wiring the Speaker Mounting Plate Route the two speaker wires through the rear of the mounting plate and attach the wire ends to the quick connect contacts using a small screwdriver (see the example illustration below) while observing the correct polarity. NOTE: The positive (+) connector and the negative (-) connector are marked on the mounting plate.
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Step 2: Using the security key to lock the speaker The SM 3 speaker uses an included security key to lock and unlock the speaker to its mounting plate (see the illustrations below). The key has two positions, lock and unlock. The active position of the key is nearest the top of the speaker.
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