INSTRUCTION MANUAL
SMS4
Compact Two-Way Loudspeaker
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TABLE OF CONTENTS
1. SAFETY INSTRUCTIONS ............................................................................................................ 2
2. KEY FEATURES............................................................................................................................. 3
3. INTRODUCTION........................................................................................................................... 3
4. INSTALLATION............................................................................................................................. 4
5. REAR PANEL FEATURES AND CONTROLS .............................................................................. 4
6. CONNECTIONS ............................................................................................................................ 4
7. SPECIFICATIONS......................................................................................................................... 5
8. SERVICE INFORMATION ............................................................................................................ 6
9. WARRANTY.................................................................................................................................. 7
2. KEY FEATURES
• 5" high-efficiency carbon fiber woofer CD horn loaded, 0.5" dome tweeter
• Built-in, multi-tap constant voltage transformer
• Built-in, low-inductance passive crossover with high-frequency dynamic
protection
• Lightweight, UV/weather resistant, high density polystyrene, trapezoidal
shaped enclosure for multiple applications and minimum visual intrusion
• Integrated mounting points for use with optional mounting hardware
• Articulated surface mount hardware included
3. INTRODUCTION
The SMS4 and SMS4W are a compact two-way loudspeaker system designed for constant-
voltage. The 5” (130 mm) carbon fiber woofer, in combination with a 0.5” (13 mm) mylar dome
tweeter mounted on a 110° x 110° constant directivity horn, provide natural, smooth sound
reproduction, ideal for use in business music systems and indoor/outdoor background music
applications. The passive crossover is designed to reduce heat dissipation and optimize the power
response of the loudspeaker. Connections are made to recessed, color – coded spring-loaded
terminals. The enclosure is constructed of high-density plastic, with M6 threaded inserts for use
with the optional mounting hardware, and includes a protective perforated steel grille.
SMS4 – 3
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4. INSTALLATION
The special hexagonal shape of the cabinet makes it possible to
position the speaker in various way, as shown in the figure. The
EAW Commercial plate on the front protective grille can be rotated
to adapt it to the position of the speaker. The speaker body has
four M6 threaded inserts, one each on the top and bottom and
two on the back, used for attaching accessories for installing the
speaker in different ways.
The SMS4 (SMS4W) loudspeakers are supplied with a black
(white) ball joint support for wall mounting.
WARNING: Consult a professional rigger or structural
engineer prior to suspending loudspeakers from a
structure not intended for that use. Always know
the working load limit of the structure supporting
the loudspeaker array. Always make sure that the
rigging hardware minimum rating is at least five
times the actual load.
5. REAR PANEL FEATURES AND CONTROLS
1. This rotary control selects the power tap for the internal constant voltage transformer. Choices
are 1W, 5W, 10W, 20W, 30W, and BYPASS (used for 4 ohm operation).
2. This rotary control selects the constant
voltage distributed system in which the
speaker is used. Choices are BYPASS
SMS4
(used for 4 ohm operation),
0 (Off), 25V, 50V, 70V and 100V.
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Note: Use a slot-head screwdriver to
adjust the rotary controls.
6. CONNECTIONS
The spring-loaded speaker terminals are designed to accept
bare wire, up to a maximum of 18 gauge. Strip 1/4’’ (6 mm) of
insulation off the end of the speaker wire, press in the tab, and
insert the bare wire into the hole. When you release the tab, the
wire is locked in place. Make sure there are no stray strands of
wire outside the terminal connection.
WARNING: To prevent the risk of electrical shock,
always fit the protective cover of the terminals after
completing connections.
-
+
4 – SMS4
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7. SPECIFICATIONS
SYSTEM
Freq. Range (–10 dB):
Freq. Response (–3 dB):
Horz. Coverage Angle (–6 dB):
Vert. Coverage Angle (–6 dB):
Directivity Factor; Q (DI):
System Sensitivity1:
60 Hz–23 kHz
75 Hz–20 kHz
110° averaged 800 Hz to 16 kHz
110° averaged 800 Hz to 16 kHz
5.6 (7.5) averaged 800 Hz to 16 kHz
87 dB, 1W @ 1m
Rated Maximum SPL:
108 dB, @ 1m
System Nominal Impedance:
4Ω (bypassed)
System Input Power Rating2
Applicable Power:
Musical Power:
60W rms (bypassed)
120W rms (0.5 sec ON, 0.5 sec OFF, bypassed)
150W rms (60W rms + 4.5 dB crest factor, bypassed)
Peak Power:
Constant Voltage:
Power Taps:
Crossover:
25V, 50V, 70V, 100V
1W, 5W, 10W, 20W, 30W
4.0 kHz
TRANSDUCERS
Low-Frequency:
5 in/130 mm carbon fiber woofer
High-Frequency:
Horn loaded 0.5 in/13 mm dome tweeter, Ferrofluid cooled
PHYSICAL
Enclosure:
45° back angles, high density polystyrene
Four points M6 threaded, two on back, one on top, and one on bottom
Wall-mount ball-joint support bracket
Attachment Inserts:
Mounting Hardware:
Color:
Matte black (SMS4) or white (SMS4W), scratch resistant paint
Matching perforated steel grille
Grille:
Input Connectors:
Dimensions (HxWxD):
Spring-loaded terminal
10.62 in/270 mm x 7.36 in/187 mm x
6.77 in/172 mm
Net Weight:
8.0 lb/3.6 kg
1 Measured on axis in the far field with 1 watt (2.00 V rms @ 4 ohms) input and referenced to 1 meter distance using the inverse square law. Listed
sound pressure represents an average from 300 Hz to 3 kHz.
2 The specifications provide three power values, which are determined by submitting the speaker to a series of laboratory tests lasting two hours
each. In the test for Applicable Power, pink noise is applied in the operating range of the speaker, and the signal is filtered at the ends of the band
with a 12 dB/octave slope. The applicable power value indicated is an rms value. The signal peaks present in the pink noise, adjusted according
to the type of speaker being tested (e.g., +4.5 dB with respect to the average level), are used for determining the Peak Power value. To identify the
Musical Power, the rms power value obtained in the first test is doubled, applying it with impulses lasting 0.5 seconds (0.5 sec ON), and at an interval
of 0.5 second between one application and the next (0.5 sec OFF). For all the tests, the maximum power that the speaker can withstand without sus-
taining permanent damage is assumed as the power value.
SMS4 – 5
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DISCLAIMER
EAW Commercial continually engages in research related to product improvement, new materials,
and production methods. Design refinements are introduced into existing products without notice
as a routine expression of that philosophy. For this reason, any current EAW Commercial product
may differ in some respect from its published description, but will always equal or exceed the
original design specifications unless otherwise stated.
“EAW Commercial” is a trademark of LOUD Technologies Inc.
All other brand names mentioned are trademarks or registered trademarks of their respective
holders, and are hereby acknowledged.
8. SERVICE INFORMATION
In the event that your SMS4 or SMS4W should require servicing, please follow these instructions:
1. Call EAW Commercial Tech Support at 1-888-337-7404, 7 am to 5 pm PST (Monday-Friday),
to verify the problem and obtain a Return Authorization (RA) Number. Be sure to have the
serial number of the unit when you call. You must have a Return Authorization Number in
order to obtain warranty service at the factory or at an authorized service center. You can also
email EAW Commercial Tech Support at: [email protected]
2. Pack the unit in its original packaging. THIS IS VERY IMPORTANT. EAW Commercial is not
responsible for any damage that occurs during shipping due to non-conventional packaging.
Original packaging helps to minimize the possibility of shipping damage.
3. Include a legible note stating your name, (no P.O. boxes), daytime phone number, Return
Authorization Number, and a detailed description of the problem, including how we can
duplicate it.
4. Write the Return Authorization Number in BIG BOLD PRINT on the top of the box.
5. Tech Support will tell you where to ship the unit when you call for an RA Number. We suggest
insurance for all forms of cartage.
6 – SMS4
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9. WARRANTY
Warranty: LOUD Technologies Inc. requires its authorized EAW Commercial distributors to abide
by the following warranty terms for all EAW Commercial brand products (all dates are from the
date of delivery from an Authorized EAW Commercial Distributor to the end user/installation site):
Loudspeakers – 5 years; Active Electronics – 5 years; Accessories – 2 years.
What Is Covered: Defects in workmanship and materials and against malfunctions. EAW
Commercial distributors must remedy all such defects and malfunctions without charge for parts
or labor if the warranty applies. Final determination of warranty coverage lies solely with each
authorized EAW Commercial distributor.
What Is Not Covered: This warranty does not extend to damage or malfunctions resulting from,
but not limited to, shipment, improper installation, misuse, neglect, abuse, normal wear, accident,
or to any product on which the serial number has been modified or removed. Exterior defects in or
damage to the exterior appearance are specifically excluded from this warranty. EAW Commercial
distributors shall not be liable for incidental or consequential damages resulting from the use
of EAW Commercial products. Repairs and/or modifications by other than an Authorized EAW
Commercial Distributor automatically voids this warranty.
SMS4 – 7
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EAW Commercial | One Main Street | Whitinsville, MA 01588 USA
TEL toll free within US/Canada 888.337.7404 | TEL outside US 425.892.6503 | FAX 425.485.1152
© 2004 LOUD Technologies Inc. All Rights Reserved. EAW Commercial is a registered trademark of LOUD Technologies Inc.
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