M&S Systems WG150C, WG150W, WG100W User Manual
WG Series
In-Wall & Ceiling Speakers
Owner’s Manual
Part Numbers
WG100C WG100W
WG150C WG150W
Introduction
WG Series ceiling and in-wall speakers are designed
to provide clear, sharply-focused audio reproduction
while remaining unobtrusive in the background. These
speakers bring out the best in any home theater or
whole-house stereo system. These products also offer
many features, including:
• 1” Asymmetrical Aluminum Dome Tweeter
• Tweeter is mounted on swivel base that en-
ables positioning up to 15 degrees off axis at
a 180-degree rotation
• Slide switches for bass and treble control
(+/-3dB)
• Cam-lock mounting system with isolated
rubber pads to reduce vibration
• Kevlar cone for low distortion and smooth
response
• Molded in IR lens that allows installation of an
infra-red receiver through the speaker baffle
• Gasket around the baffle to provide an
acoustic seal
Description
Frequency Response 50Hz to 20kHz (+/-3db)
Maximum Power Rating 100 Watts
Impedance Rating 8-Ohms
Overall Speaker Dimension 9” Diameter
Specifications 6” Kevlar cone woofer;
1” asymmetrical aluminum dome
tweeter
Mounting Dimension w/o
Mounting Ring
Mounting Ring Dimension 8 3/16” Diameter
Grille Aluminum
Color White
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7 13/16” Diameter
WG150C Ceiling Speakers (Sold in Pairs)
Frequency Response 35Hz to 20kHz (+/-3db)
Maximum Power Rating 150 Watts
Impedance Rating 8-Ohms
Overall Dimensions 10 7/8” Diameter
Specifications 8” Kevlar cone woofer;
1” asymmetrical aluminum dome
tweeter
Mounting Dimension w/o
Mounting Ring
Mounting Ring Dimension 10 1/16” Diameter
Grille Aluminum
Color White
9 5/8” Diameter
WG100W In-wall Speakers (Sold in Pairs)
Frequency Response 50Hz to 20kHz (+/-3db)
Maximum Power Rating 100 Watts
Impedance Rating 8-Ohms
Overall Dimensions 9” W x 12 5/16” H
Specifications 6” Kevlar cone woofer;
1” asymmetrical aluminum dome
tweeter
Mounting Dimension w/o
Mounting Ring
Mounting Ring Dimension 7 15/16” W x 11 3/16” H
Grille Aluminum
Color White
7 1/2” W x 10 13/16” H
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WG150W In-wall Speakers (Sold in Pairs)
Frequency Response 35Hz to 20kHz (+/-3db)
Maximum Power Rating 150 Watts
Impedance Rating 8-Ohms
Overall Dimensions 10 1/4” W x 14 15/16” H
Specifications 8” Kevlar cone woofer;
1” asymmetrical aluminum dome
tweeter
Mounting Dimensions w/o
ring
Mounting Ring Dimension 9 3/16” W x 13 3/16” H
Grille Aluminum
Color White
8 11/16” W x12 3/4” H
Unpacking Your Speakers
Before you unpack your speakers, be extra
careful not to touch the cone and tweeter
materials. After carefully unpacking your
speakers, the carton and the packing material
should be saved for possible use later. If any
speaker appears to be damaged, do not attempt
to repair or to connect the unit to the amplifier.
Repack the speaker and notify your distributor or
M&S Systems for replacement or repair.
Speaker Location
Ceiling Installation
Careful consideration must be given to the
speaker location to realize the full frequency
range. Ceiling speakers should be spaced 6 to 8
feet (6 feet for 8-foot ceilings and 8 feet for 10-
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foot ceilings and above) apart but no closer than
2 feet to any adjacent wall. Avoid placing
speakers in air return cavities. Some type of
protection will be required for the back of the
speaker if blown insulation is used. The following
is a partial list of ways to protect the speaker:
• Use an RE-16 speaker cover
• Use a piece of wood that will cover at least 3
feet on either side of the speaker opening.
The ends may be partially closed to keep the
blown insulation from reaching the speaker,
however, a minimum gap of 2 inches at each
end is better than a sealed box
• Use a piece of bat insulation at least 3 inches
thick over the back of the speaker. This
insulation should not have a backing or if it
does, the backing must be installed facing
away from the speaker.
• Use a fine mesh to cover the back of the
speaker to protect against bulk type insulation
materials. This will not work with insulation
containing fine powders.
Do not install speakers in joist cavities containing
120/240V appliances, within 18 inches of dimmer
light fixtures, security wiring and other control
wiring.
In-wall Installation
Careful consideration must be given to the
speaker location to realize the full frequency
range. In-wall speakers should be spaced 6 to 8
feet apart but no closer than 2 feet to any
adjacent wall or ceiling. Typical height from the
floor would be in the 4 to 6 foot range. Avoid
placing speakers in air return wall cavities,
outside walls or walls containing plumbing.
To reduce vibration into a room on the back side
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of the speaker, use a piece of bat insulation at
least 3 inches thick in the stud cavity. This
insulation should not have a backing or if it does,
the backing must be installed facing away from
the speaker. The insulation should extend about
2 ft. on either side of the speaker opening.
Do not install speakers in outside walls, stud
cavities containing 120/240V appliances, within
18 inches of dimmers, security wiring and other
control wiring.
Speaker Installation
for New Construction
Ceiling Speakers
Step 1. Speaker mounting rings are used in the
pre-construction phase of speaker installation
during construction of new homes and additions.
WG Series mounting rings are designed to pro-
vide drywall Installers
the correct cut-out
pattern for the speakers. The mounting
rings have “flaps” that
are nailed/screwed/
stapled onto the joist.
See figure 1. Once
the wall board is installed, the opening is
cut out to mount the
FIGURE 1
molded into the mounting ring for speaker wire
tie-off.
speaker.
When installing the
mounting ring, note
that there are holes
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TIPS FOR NEW CONSTRUCTION
• If possible, run speaker wires after AC
wiring is in place to avoid additional noise
caused by close proximity of wiring.
• Secure the speaker wires against a joist with
insulated staples, being careful not to pierce
the wire insulation. Allow slack for building
material expansion.
• Horizontal wire runs should be routed through
holes drilled at equal heights in the joist.
• Do not install the actual speaker until the wall
board is in place. Until then leave several feet
of wire secured to the back of the mounting
ring. The excess wire can be removed during
final installation.
• During the drywall installation, make sure the
speaker cut-out hole does not extend farther
than 1/4 inch from the inside of the mounting
ring. The flat rough-in rings and flaps are thin
enough that they won’t interfere with wall
board installation.
FIGURE 2
Step 2. After you
have determined
the speaker
locations using the
guidelines above,
secure a 16 gauge
2-conductor
cable to the mounting ring tabs (see
figure 2), such as
the M&S Systems
MS16X, for
attachment to the
speakers after the
dry wall has been
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installed. Leave at least 18 inches additional cable for the connection during final speaker installation. Run the other end of the speaker cable to
the audio source.
NOTE: Make a drawing of each speaker location.
This will assist you in locating the wires if they
have been covered after the wall board has been
installed.
Step 3. This is the finish-out stage. Prepare the
speaker wiring by stripping off approximately 3
inches of the outer jacket (care should be taken
so the insulation on the wires inside the jacket
are not damaged) also strip approximately 3/8
inch off the ends of the two inside conductors.
Twist the ends of the stranded cable so the wires
are tight.
Step 4. Follow the instructions included with the
volume control and amplifier.
Step 5. You are now ready to install the speaker.
Remove the paint mask from the baffle. Be
careful not to touch the speaker cones and
Positive
(red)
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FIGURE 3
Negative (black)
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