Page 1
SM 3
Surface Mount Speakers
User Guide
Speakers
68-1540-01
Rev. A
05 12
Page 2
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.
Page 3
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
Page 4
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
Page 5
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
Page 6
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
Page 7
NOTE: Observe all applicable building codes and local ordinances when installing the speaker.
Speaker
Cables
Cable Clamp
W
Mounting to a Wall Box
1. Place the wall box against the installation surface, and mark the guidelines for the
opening on the wall.
2. Cut the material from the marked area.
3. Insert the wall box to check the size of the opening and fit. Enlarge or smooth the edges
of the opening if needed.
4. Feed cables through punch-out holes of the wall box leaving enough slack for the
speaker connections and secure them with cable clamps to provide strain relief.
5. Insert the wall box into the opening and attach it to the wall or stud, leaving the front
edge flush with the outer wall (see figure 3 below).
6. To attach a wall box to wood, use four #8 or #10 screws or 10-penny nails. A minimum
of 1/2 inch (1.3 cm) of screw threads must penetrate the wood.
all Stud
Screws or Nails
Figure 3. Wall box installation
Wall opening
flush with
edge of box
SM 3 User Guide • Installation 4
Page 8
Wiring the Speaker Mounting Plate
1. 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 figure 4 below). 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 (where used), using two mounting screws
(see figure 4 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.
Quick Connect Contacts
Mounting Screws
Figure 4. Attaching the mounting plate to a wall box
SM 3 User Guide • Installation 5
Page 9
NOTE: When mounting to surfaces that do not allow wires to be routed from
behind (such as on masonry or concrete walls) and the wires are routed
to the speakers via a raceway, use the alternate access points (see figure 5
below) to run the wires to the quick connect speaker contacts.
OR
0° Mounting Plate
Alternate Access Point
10° Mounting Plate
Alternate Access Points
Figure 5. Alternate wire access points
SM 3 User Guide • Installation 6
Page 10
Mounting to a Wall Stud
1. Install the speaker cables into the wall or conduit before installing the speaker mounting
plate.
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. Use the holes on
either side of the mounting plate so that the stud does not interfere with the speaker
wire routing (see figure 6 below).
NOTE: A speaker wire access hole (see figure 6 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.
Mounting Screws
Figure 6. Attaching the mounting plate to a wall
3. Drill the mounting plate pilot holes and cut the speaker wire access hole, as previously
marked.
4. Route the speaker cables through the wall without snagging, being sure to leave
enough slack to connect the wires to the mounting plate.
SM 3 User Guide • Installation 7
Page 11
Attaching the Speaker to the Mounting Plate
Step 1: Attaching the Speaker
Position the rear mounting slot of the speaker above the catch tab of the mounting plate,
then slide the speaker down into the mounting plate so that the speaker is secured in place
(see figure 7 below). When properly seated, the speaker connections are automatically
made.
Catch Tab
Figure 7. Attaching the speaker
SM 3 User Guide • Installation 8
Page 12
Step 2: Using the Security Key to Lock and Unlock the Speaker
The SM 3 speaker uses an included security key to lock and unlock the speaker to and from
the mounting plate (see figure 8 below). The key has two positions: lock and unlock. The
active position of the key is nearest the top of the speaker.
NOTE: To avoid misplacing the key, store the key in a secure location for future use.
Insert the key into the center of the speaker grill and turn the key, as needed, so that
the speaker is in the unlocked position (see figure 8 below). There are three small raised
“dimples” on the grill surface that surrounds the keyhole.
ATTENTION: The key must be rotated to the unlocked postion before the speaker
is attached to the mounting plate. Failure to place the speaker in the
unlocked position will result in damage to the speaker lock mechanism
should an attempt be made to mount the speaker.
Locked
Twist to
Lock/Unlock
Unlocked
Front View
Rear View
Figure 8. Using the security key
SM 3 User Guide • Installation 9
Page 13
Removing the Speaker from the Mounting Plate
To remove the speaker from the mounting plate, you must unlatch the locking mechanism:
1. Insert the security key into the keyhole of the speaker grill (see Step 2 of the previous
section) and turn the key to the unlock position.
2. Remove the security key.
3. Apply pressure with your finger over the keyhole to unlatch the speaker from the
mounting plate while lifting up on the speaker (see figure 9 below).
Press to Release
Figure 9. Removing the speaker from the mounting plate
ATTENTION: To avoid damaging or scratching the grill finish, do not use tools or sharp
instruments to depress the unlocking mechanism hidden behind the center
of the grill.
NOTE: The speaker may be supported by a safety line (see “Attaching a Seismic Support
Cable” in the following section).
SM 3 User Guide • Installation 10
Page 14
Attaching a Seismic Support Cable
If a seismic support cable is being used, use the included screw to attach a suitable cable to
the screw hole (see figure 10 below).
Anchor this end to a
suitable secure point.
Insert screw here.
Reference only
Attach cable here
and secure.
Seismic Support
Cable
Figure 10. Attaching a seismic support cable
SM 3 User Guide • Installation 11
Page 15
Reference
Information
The Reference Information section describes:
• Specifications
• Parts List
• Packaging
Specifications
Audio/acoustic and electrical
Speaker type .................................. 1-way, full range, indoor surface mount speaker
Frequency range ............................. 75 Hz to 18 kHz, -10 dB, full space
Power capacity ............................... 15 W (rms) continuous pink noise (per IEC 60268-5)
Nominal sensitivity .......................... 83 dB SPL, 1 W, 1 m, full space
Nominal impedance ....................... 8 ohms
Driver ............................................. (1) 3" (76.2 mm) paper cone
Input connectors
Speaker ................................... 2 recessed pins
Mounting plate ........................ (1) 10 mm Euro-style captive screw terminal block, 2 pole
General
Package ......................................... 2 speakers (1 pair) with mounting kit
Temperature/humidity .................... Storage: -40 to +158 °F (-40 to +70 °C) / 10% to 90%, noncondensing
Mounting ....................................... Wall mountable with included mounting plates (0° and 10°)
Enclosure type ................................ Plastic, trapezoidal, with molded grille and front bass reflex port
Enclosure outer dimensions
With 0° mounting plate ........... 8.75" H x 5.75" W x 4.0" D
With 10° mounting plate ......... 8.9" H x 5.75" W x 5.0" D
Product weight ............................... Single: 2.0 lbs (0.9 kg)
Shipping weight ............................. Pair: 6 lbs (2.7 kg) with mounting kit package
Regulatory compliance
Safety ...................................... CE
Environmental .......................... Complies with the appropriate requirements of RoHS, WEEE.
Warranty ........................................ 5 years parts and labor
30 W (rms) continuous program
Operating: +32 to +122 °F (0 to +50 °C) / 10% to 90%, noncondensing
(22.2 cm H x 14.6 cm W x 10.2 cm D)
(22.6 cm H x 14.6 cm W x 12.7 cm D)
SM 3 User Guide • Reference Information 12
Page 16
SM 3 RESPONSE GRAPHS – FREQUENCY AND IMPEDANCE
SPL vs. FREQUENCY
dBSPL
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
20 Hz 50 100200 5001K2K5K10K 20K
SPL vs. FREQUENCY – HORIZONTAL OFF-AXIS RESPONSE
dBSPL
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
20 Hz 50 100200 5001K2K5K10K 20K
0 Degrees
10 Degrees
20 Degrees
30 Degrees
40 Degrees
IMPEDANCE vs. FREQUENCY
Ohm
40
30
20
10
9
8
7
6
5
20 Hz 50 100200 5001K2K5K10K 20K
SM 3 User Guide • Reference Information 13
Page 17
SM 3 POLAR GRAPHS – 1/3 OCTAVE, HORIZONTAL
60
90
120
60
100.00 Hz
125.00 Hz
30
150
630.00 Hz
800.00 Hz
30
90
120
250.00 Hz
315.00 Hz
60
150
0 Deg
30
0
-10
-20
-30
180
0 Deg
180
-10
-20
-30
160.00 Hz
200.00 Hz
-30
0
-60
-90
-120
-150
100 Hz - 200 Hz 250 Hz - 500 Hz
1.60 kHz
2.00 kHz
60
0 Deg
30
0
-10
-20
-30
0 Deg
-10
-20
-30
1.00 kHz
1.25 kHz
-30
0
-60
400.00 Hz
500.00 Hz
-30
-60
-90
-120
-150
2.50 kHz
3.15 kHz
-30
-60
-120
6.30 kHz
8.00 kHz
-60
-120
-90
-90
90
120
90
120
10.00 kHz
12.50 kHz
60
150
180
1.6 kHz - 3.15 kHz
0 Deg
30
150
0
-10
-20
-30
180
10 kHz - 20 kHz
-150
-30
-150
90
120
150
-150
180
630 Hz - 1.25 kHz
4.00 kHz
5.00 kHz
0 Deg
30
60
90
120
150
180
-10
-20
-30
-30
0
-150
4 kHz - 8 kHz
-90
-120
16.00 kHz
20.00 kHz
-60
-90
-120
SM 3 User Guide • Reference Information 14
Page 18
Parts List
Included Parts
Optional Accessories
Packaging
Description Part Number
SM 3 speaker kit, black 42-133-02
SM 3 speaker kit, white 42-133-03
SM 3 Setup Guide
Description Part Number
SM 3 replacement wall mounting kit, black 70-930-02
SM 3 replacement wall mounting kit, white 70-930-03
0° Mounting Plates (2)
Security Keys (2)
10° Mounting Plates (2)
End Cap
Secondary Attachment
Screws (2)
Speakers
End Cap
Figure 11. Packaging diagram
SM 3 User Guide • Reference Information 15
Page 19
Extron Warranty
Extron Electronics warrants this product against defects in materials and workmanship for a period of five years
from the date of purchase. In the event of malfunction during the warranty period attributable directly to faulty
workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components,
to whatever extent it shall deem necessary to restore said product to proper operating condition, provided that it is
returned within the warranty period, with proof of purchase and description of malfunction to:
USA, Canada, South America,
and Central America:
Extron Electronics
1001 East Ball Road
Anaheim, CA 92805
U.S.A.
Europe and Africa:
Extron Europe
Hanzeboulevard 10
3825 PH Amersfoort
The Netherlands
Japan:
Extron Electronics, Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan
China:
Extron China
686 Ronghua Road
Songjiang District
Shanghai 201611
China
Asia:
Extron Asia
135 Joo Seng Road, #04-01
PM Industrial Bldg.
Singapore 368363
Middle East:
Extron Middle East
Dubai Airport Free Zone
F12, PO Box 293666
United Arab Emirates, Dubai
Singapore
This Limited Warranty does not apply if the fault has been caused by misuse, improper handling care, electrical or
mechanical abuse, abnormal operating conditions, or if modifications were made to the product that were not
authorized by Extron.
NOTE: If a product is defective, please call Extron and ask for an Application Engineer to receive an RA (Return
Authorization) number. This will begin the repair process.
USA: 714.491.1500 Europe: 31.33.453.4040
Asia: 65.6383.4400 Japan: 81.3.3511.7655
Units must be returned insured, with shipping charges prepaid. If not insured, you assume the risk of loss or damage
during shipment. Returned units must include the serial number and a description of the problem, as well as the
name of the person to contact in case there are any questions.
Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality,
performance, merchantability, or fitness for any particular use. In no event will Extron Electronics be liable for direct,
indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been
advised of such damage.
Please note that laws vary from state to state and country to country, and that some provisions of this warranty may
not apply to you.
Extron Headquarters
+1.800.633.9876 (Inside USA/Canada Only)
Extron USA - West Extron USA - East
+1.714.491.1500 +1.919.850.1000
+1.714.491.1517 FAX +1.919.850.1001 FAX
Extron Europe
+800.3987.6673
(Inside Europe Only)
+31.33.453.4040
+31.33.453.4050 FAX
Extron Asia
+800.7339.8766
(Inside Asia Only)
+65.6383.4400
+65.6383.4664 FAX
© 2012 Extron Electronics All rights reserved. www.extron.com
Extron Japan
+81.3.3511.7655
+81.3.3511.7656 FAX
Extron China
+4000.398766
Inside China Only
+86.21.3760.1568
+86.21.3760.1566 FAX
Extron Middle East
+971.4.2991800
+971.4.2991880 FAX
Extron Korea
+82.2.3444.1571
+82.2.3444.1575 FAX
Extron India
1800.3070.3777
Inside India Only
+91.80.3055.3777
+91.80.3055.3737 FAX
Loading...