Extron electronics SM 3 User Manual
SM 3
Surface Mount Speakers
User Guide
Speakers
68-1540-01
Rev. A
05 12
Conventions Used in this Guide
In this user guide, the following are used:
ATTENTION: Attention indicates a situation that may damage or destroy the product or
associated equipment.
NOTE: A note draws attention to important information.
Copyright
© 2012 Extron Electronics. All rights reserved.
Trademarks
All trademarks mentioned in this guide are the properties of their respective owners.
Contents
Introduction............................................................ 1
Features .............................................................. 1
Application Example ........................................... 2
Installation .............................................................. 3
Installing the Speaker Mounting Plate ................. 3
Mounting to a Wall Box .................................. 4
Wiring the Speaker Mounting Plate ................. 5
Mounting to a Wall Stud ................................. 7
Attaching the Speaker to the Mounting Plate ...... 8
Step 1: Attaching the Speaker ......................... 8
Step 2: Using the Security Key to Lock and
Unlock the Speaker ........................................ 9
Removing the Speaker from the Mounting Plate 10
Attaching a Seismic Support Cable .................... 11
Reference Information ....................................... 12
Specifications .................................................... 12
Parts List ........................................................... 15
Included Parts ............................................... 15
Optional Accessories ..................................... 15
Packaging ......................................................... 15
SM 3 User Guide • Contents iv
Introduction
This user guide contains information about the Extron® SM 3 speaker.
The Extron SM 3 is a compact, fast-installing flush mount speaker featuring the Extron
SpeedMount™ System. The enclosure measures less than 4" (10.2 cm) deep. The 8 ohm
speaker features a 3" (7.6 cm) full-range driver and tuned bass port, a wide frequency
response of 75 Hz to 18 kHz, and a power rating of 15 watts continuous pink noise, 30
watts continuous program capacity. SpeedMount is an Extron-exclusive, concealed mounting
system designed to speed up installation. During rough-in, electrical contractors can install
a 0° or 10° mounting plate on the wall and terminate the speaker cable to the integrated
wiring contacts of the mount. Later, installers can slide the SM 3 speaker onto the mount
and secure it into place with a “click,” while automatically connecting to the wiring
contacts.
The SM 3 speaker is ideally suited for small to medium classrooms and conference rooms
where surface mount speakers are desired, but wall space for speaker placement is limited. It
provides wide frequency response and wide coverage from a compact enclosure to optimize
voice intelligibility without compromising music reproduction.
The exclusive SpeedMount mounting system allows the SM 3 to slide onto the mounting
plate and lock into place with a “click.” The integrated electrical contacts on the speaker
automatically mate with the pre-wired contacts on the mounting plate, further simplifying
and speeding up installation. A release on the speaker baffle allows for quick removal
from the mount. The hidden release deters theft along with the concealed speaker wiring
contacts. When used with the 0° mounting plate, the SM 3 protrudes less than 4” from the
wall to comply with ADA - Americans with Disabilities Act standards for protruding object
limits.
The SM 3 is sold in pairs and is available in a black or white finish. It includes 0° and 10°
mounting plates, and a 5 year parts and labor warranty.
Features
• Low profile — Compact low profile, full-range speaker
• SpeedMount™ — Exclusive SpeedMount mounting system included with 0° and 10°
mounting plates
• Impedance — 8 ohm nominal impedance
• Full-range driver — 3" (7.6 cm) full-range driver with a tuned bass reflex port
• Frequency response — Frequency response: 75 Hz to 18 kHz
• Power — 15 watts continuous pink noise, 30 watts continuous program
• Flush mount — Flush mount design with shallow profile
• Mounting plate — Speaker easily slides onto mounting plate, connects to wiring
contacts, and secures into place with a “click”
• ADA compliance — Complies with ADA requirements on protrusion limits when used
with 0° mounting plate
SM 3 User Guide • Introduction 1
Application Example
• Locking release mechanism — Hidden locking speaker release mechanism
• Raceway access – Mounting plates provide cable raceway access for surface-mounted
wiring applications
• Color options – Black or white high-impact enclosure
• Dimensions – With 0° mounting plate: 8.75" H x 5.75" W x 5.6" D
(22.2 cm H x 14.6 cm W x 14.2 cm D)
• Warranty – 5 year parts and labor warranty
Figure 1 below is one example of configuring a system using the SM 3 speakers.
1
VIDEO
2
DISPLAY
AUX
OFF
VIDEO
3
ON
PC
4
VOLUME
IMAGE
CONFIG
MUTE
MLC 104 IP PLUS
Extron
Laptop
POWER
12V
3A MAX
Extron
MPA 152
Mini Power
Amplier
Projector
RS-232 or
IR Projector
control
Audio
4/8
OUTPUT
OHMS
R
L
CLASS 2 WIRING
REMOTE
DO NOT GROUND
OR SHORT
SPEAKER OUTPUTS!
MPA 152
VOL/MUTE
50mA
10V
US
INPUTS
R
C
LISTED
L
17TT
AUDIO/VIDEO
APPARATUS
R
L
Audio
Audio
Extron
Audio
S-Video
RGBHV
Video
DVD/VCR
Combo
Extron
MLC 104 IP Plus
MediaLink Controller
with IP Link
SM 3
Full-range
Speakers
Figure 1. Application example using SM 3 speakers
SM 3 User Guide • Introduction 2
Installation
The Installation section describes:
• Installing the Speaker Mounting Plate
• Attaching the Speaker to the Mounting Plate
• Removing the Speaker from the Mounting Plate
• Attaching a Seismic Support Cable
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 flat on a vertical
wall with the speaker protruding less than four inches (ADA compliant) from the wall
surface (see figure 2 below).
• 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
(see figure 2 below).
0° Mounting Plate 10° Mounting Plate
Figure 2. Two types of speaker mounting plates
SM 3 User Guide • Installation 3
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