IMPORTANT:
Go to www.extron.com for the
SM 3 • Setup Guide
complete user guide, installation
instructions, and specifications.
This setup guide contains installation information about the Extron SM 3 speaker.
Installing the Speaker Mounting Plate
The SM 3 speaker comes with two types of speaker mounting plates:
0° mounting plate — The 0° plate allows the speaker to be mounted at on a vertical wall with the speaker protruding less
than four inches (ADA compliant) from the wall surface.
10° mounting plate — The 10° mounting plate allows the speaker to be installed at a 10 degree angle so that the speaker
can be pointed down from an elevated position.
The mounting plate can be installed vertically or horizontally as shown
on the right.
Catch Tab
0° Mounting Plate 10° Mounting Plate
Vertical Mounting
Horizontal Mounting
NOTE: Observe all applicable building codes and local ordinances when installing the speaker.
Mounting to a Wall Box
1. Route the speaker cable through the rear of the mounting plate and attach the wire ends to the quick connect contacts using
a small screwdriver (see the following gures on the next page). Be sure to observe the correct polarity.
NOTE: The positive (+) connector and the negative (-) connector are marked on the mounting plate.
2. Attach the mounting plate to the wall box, using two mounting screws (see gure below).
NOTE: The mounting screw holes in the mounting
plate allow for some degree of play and lateral
movement so that the mounting screws may
be aligned properly with the screw holes of the
wall box. Observe U.S. and European screw
locations, as shown on the right.
ATTENTION: Make sure that the wall box is
secured to the wall structure and can handle the
weight of the speaker. If there is doubt, secure
the mounting plate with additional mounting
screws. The wall stud mounting holes can be
used for this purpose.
Top Screw
European Box Screw Location
U.S. Box Screw Location
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SM 3 • Setup Guide (Continued)
ATTENTION: Use the appropriate mounting screws. The screw heads must not protrude more than .074” (1.9 mm)
above the screw holes in the mounting plate (see the gure below left). If the screw head protrudes too far above the
mounting plate surface, damage to the speaker may occur when the speaker is attached (see the gure below right).
Mounting Screws
Mounting to a Wall Stud
Quick Connect Contacts
1.97”
(5 mm)
0.074”
(1.9 mm)
Goo
Bad
1. Install the speaker cables into the wall or conduit before installing the speaker mounting plate. Leave enough slack.
2. Locate the wall stud where the mounting plate will be installed and while positioning the mounting plate on the wall mark the
location of two pilot holes using the holes on either side of the mounting plate so that the stud does not interfere with the
speaker wire routing, as shown below.
NOTE: A speaker wire access hole (see the figures below) must also be cut in the wall, so mark that hole
location now with the mounting plate positioned on the wall while ensuring that the wall stud does not
interfere with the wire routing and that the mounting plate hides the access hole.
OR
0° Mounting Plate
Alternate Access Point
10° Mounting Plate
Alternate Access Points
NOTE: When mounting to surfaces that do not allow
wires to be routed from behind (such as on masonry
Mounting Screws
or concrete walls) and the wires are routed to the
speakers via a raceway, use the alternate access
points to run the wires to the quick connect speaker
contacts (see the figures above).
ATTENTION: Use the appropriate mounting screws (see the above ATTENTION).
3. Drill the mounting plate pilot holes and cut the speaker wire access hole, as previously marked.
4. Route the speaker cable through the rear of the mounting plate and attach the wire ends to the quick connect contacts
using a small screwdriver (see the illustrations at the top of this page). Besure to observe the correct polarity.
5. Attach the mounting plate to the wall.
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