IWTS-14 SR and 30 SR
High Performance In-Wall Surround Speakers
DIPOLE/THX
BIPOLE
IWTS-14 SR
IWTS-14 SR
DIPOLE/THX
BIPOLE
IWTS-30 SR
IWTS-30 SR
Speaker Descriptions
3
Instruction Manual
Speaker Descriptions
Figure 1
IWTS-14 SR and 30 SR
The IWTS-14 SR and IWTS-30 SR are in-wall surround speakers that
deliver spacious, enveloping surround effects for top-grade home theater
systems.They feature two angled banks of drivers facing front and rear that
fill the listening area with the three-dimensional ambient sound essential
for convincing, lifelike theater sound.
DIPOLE/THX
BIPOLE
Both speakers incorporate dual woofers (4½”in the 14 SR,5¼”in the 30 SR)
and dual 1”soft dome tweeters. The speakers are switchable dipole/Bipole
designs; that is, the two sets of drivers can either be set for out-of-phase
(dipole) operation, for a diffuse, non-localizable sound, or set for in-phase
(bipole) operation, for a more direct, localizable effect.
IWTS-14 SR
Either model can fill large home listening rooms with dramatic surround
effects. However, because of its exceptional output capability, the IWTS-30
SR is THX Ultra-certified, a testimony to its outstanding performance and
its suitability to being used in the very finest systems.
IWTS-14 SR
Figure 2
DIPOLE/THX
BIPOLE
IWTS-30 SR
IWTS-30 SR – THX Ultra Certified
Speaker Setup
4
IWTS-14 SR and 30 SR High Performance In-Wall Surround Speakers
Surround Effects and SR Speaker Locations
Speaker Setup
The IWTS SR’s shape allows great flexibility in placement.Due to their swit-
chable Dipole/Bipole design, it’s possible to place the speakers almost any-
where within the rear third of the room and get good results. However, the
best location for surround speakers is straight out to the sides of,or slightly
behind the primary listening area, approximately 1-2 feet above seated ear
level to no less than 2 feet down from the ceiling.
Dipole/Bipole Operation of the IWTS SR Speakers
In Dipole mode the IWTS SRs produce ambience with
DIPOLE/THX
minimal localization (best for most movies and video
soundtracks),and more localizable sound in the Bipole
mode (preferred for some music recordings).Switching
between Dipole and Bipole mode is easily accomplished
using a toggle switch conveniently located on the speak-
ers front baffle.Please note that the vast majority of the
As noted above,the surround speakers (as opposed to the back speaker(s)
in a 6.1 or 7.1 channel system,see below) are primarily intended to re-create
the ambient sounds taking place in the movie scene.Therefore, throughout
most of a movie or TV program you may not be consciously aware of output
from these speakers. In other words, don’t worry if you aren’t hearing the
surround speakers.Please try to avoid the trap of turning the surrounds up
and up so that you hear them most of the time. The result will be a much
less believable surround experience.
BIPOLE
time in movies and TV broadcasts the surround speakers are called upon
to reproduce the environmental sounds that are used as cues to help get
you immersed in the scene on the screen. Once the surround speakers are
properly positioned in the listening area,we recommend that you begin with
the dipole mode, as this usually delivers the most involving and believable
surround performance in most situations.However,as noted above,feel free
to experiment with both switch positions.
There are dedicated LEFT and RIGHT model IWTS SR speakers. This is
clearly marked on the back of each speaker. Be sure that the Left side sur-
round speaker is placed directly to the left side of the prime listening area
(facing the screen) and the Right speaker is directly to the right side.
Placement
Speaker/room interactions have a huge impact on the sound of the system.
Moving the speakers just a little can make a dramatic difference in what you
hear.Remember that the best acoustic placement of the speakers will vary
from room to room. Use the following placement guidelines as a starting
point. But also feel free to experiment. In fact, it may be beneficial to hook
up the front LR and surround speakers with some extra wire and to simply
drape the wire across the floor before installing the speakers permanently.
This will allow you the opportunity to move the speakers around easily so
you can find the best sonic and visual locations. Remember, it's very dif-
ficult to move in-wall speakers once they're installed!
6.1/7.1 Channel Systems
If you are setting up a system that uses back surround speaker(s) as well as
side surrounds (Dolby Digital EX, DTS ES, etc.) you can use either IWTS SR
model in Dipole or Bipole mode in the back of the room.
If you are using a THX Ultra 2 certified controller/receiver you should place
the back surround speakers approximately 1 to 2 feet apart in the center
of the back wall. The special circuitry in the processor will help to create a
believable and effective surround field using this placement.Please read the
electronics manual to learn more about this placement option.
Home Theater
The primary goal of a good home theater is not to make you believe that
you are in a movie theater.It’s to make you believe you’re in the movie.For a
home theater system, place the LR speakers on either side of the television.
The left and right front speakers should be far enough apart (6 to 10 feet is
usually best) that you get a good stereo“image”when they are playing alone,
but not so far apart that the sound seems to be disembodied from the TV,
distracting you from the picture. When using a center channel speaker, a
wider separation of the left and right front speakers is usually possible.
The center channel speaker should be placed directly above or below your
television. It is important that the speaker is centered on the screen, not off
to the side.
Speaker Placement
5
Instruction Manual
Speaker Placement
Front Speaker Array should be
placed as close to ear level as
possible. Place the Left and Right
speakers about 6-10 feet apart.
Subwoofer
placement is
dependent on room
size and shape.
Experiment to find a
location that
Left
Center
Right
produces the
smoothest response.
Surround Speakers
should be placed directly
to the sides of the seating
area and approximately
3 feet above the listener’s
ear level. Dipole is best
setting here.
Subwoofer
Surround Back Speakers should
be placed approximately 3 feet
above the listener’s ear level. Either bipole
or dipole setting will work well here.
Speaker Installation
6
IWTS-14 SR and 30 SR High Performance In-Wall Surround Speakers
Removing and Installing the Grille
Speaker Installation
Remove the grille from the speaker using an awl or the point of a drywall
screw in a grille opening near one of the grille corners. Slowly pry the grille
out, being careful not to damage the speaker’s frame or its finish.
NOTE: We always recommend a professional be involved in the instal-
lation of the IWTS SRs.
To re-install the grille later,press it carefully into the appropriate opening in
the frame assembly. Since it’s designed to fit snugly, please take your time
and use care when installing the grille.
Installation of the IWTS SRs in New Construction
with Optional Bracket
For new construction,we highly
recommend that you use the
optional IN-NC-14/30SR New
Construction Bracket.
Cutting the Opening
The lip on the New Construc-
tion Bracket must face outwards
into the room.Sheetrock is then
installed up to the lip, leaving a
perfectly-defined mounting hole
for the speakers.
10 3⁄4”
IWTS-14 SR
(273mm)
and IWTS-30 SR
Mounting Template
14 1⁄4”
(362mm)
Use a level to get it straight; this
can't be fixed later.
015-1214
Installation of the IWTS-14 SR and 30 SR in
Existing Construction
The IWTS SRs can be easily
mounted in most any stan-
dard wall material, from ½ to
1½ inches thick.The IWTS SR
rotating wall clamps firmly fix
it to the wall surface after the
proper cutout has been made.
An important precaution to
take before mounting:
Keep the top and bottom of
the actual mounting hole at
least 1½ inches away from
beams or studs to ensure that
the clamps have adequate
room to rotate. A crossbrace
or other obstruction that’s
too close will stop them from
properly doing their job.
After determining the best location for the speaker as outlined above, use
the enclosed template to cut the proper size hole.
10¾ x 14¼” (273 x 362mm)
WARNING: Exercise extreme care before making any wall cuts to
ensure that you will not cut through any wires, pipes, or other items
that may be in the wall. You may sometimes, but not always, be able
to determine the approximate location of wires and pipes by looking
at the locations of nearby outlets and plumbing. But their location or
absence is never an assurance that there is not something within the
wall cavity.
Speaker Wiring
7
Instruction Manual
Installing the Speaker Assembly
Speaker Connection
The clamping mechanism
allows the wall material to
range from ½" to 1½" (13 to
38 mm) in thickness. There
must be a minimum depth
behind the wall face of 35⁄8”
(92 mm).As noted above,be
sure to keep the top and bot-
tom of the cutout at least 1½"
(38mm) away from obstruc-
tions, as the rotating clamps
will not operate properly if
you don’t.
Insert the speaker into the
cutout and using a level or
square carefully align it so it
is level.Tighten the mounting
screws, which will cause the attached clamps to rotate and position them-
selves properly behind the wall.
Strip about ½" (13 mm) of insulation from the connecting wires. Connect
them to the appropriate push terminal, being careful to observe polarity
(positive to the red terminal, negative to the black terminal).
Continue to tighten until the speaker is snug in the wall.You want the bezel
to conform to the wallboard,and the frame not to rattle from the speaker’s
vibration, but be very careful not to overtighten the screws.
Specifications
Model
IWTS-30 SR
IWTS-14 SR
THX Certification
Type
THX Ultra
NA
It is strongly recommended that you hand-tighten the mounting screws
the final few turns (after using an electric screwdriver set to "low
torque") to avoid the possibility of damaging the frame.
2-way Dipole/Bipole
Switchable
2-way Dipole/Bipole
Switchable
Drivers
Woofer (2) 5¼” (135mm) GLH§
Tweeter (2) 1" (25mm) soft dome
(2) 4½” (115mm) GLH§
(2) 1" (25mm) soft dome
Painting the Speaker Assembly
Frequency Response
Nominal Impedance
Crossover Frequency
Sensitivity
80Hz – 20kHz 3dB
6 Ohms
100Hz – 20kHz 3dB
6 Ohms
The white plastic frame and the metal grille may be left as is, or painted to
match your décor. To paint the frame, place the included Paint Shield over
the drivers, then carefully spray paint with a plastic-compatible paint. To
paint the grille, first remove it from the speaker, then spray using a slightly
thinned paint or with two very light coats.
3500Hz
4000Hz
87dB
87dB
Recommended
Amplifier Power
25 – 150 Watts RMS
25-125 Watts RMS
Overall Dimensions
(W x H x D)
155⁄8 x 121⁄8 x 3¾"
397 x 308 x 96mm
155⁄8 x 121⁄8 x 3¾"
397 x 308 x 96mm
Cutout Dimensions
(W x H)
14¼ x 10¾"
362 x 273mm
14¼ x 10¾"
362 x 273mm
Weight (ea)
9lbs; 4.1kg
8lbs; 3.7kg
§Graphite Loaded Homopolymer
Specifications are those in effect at the time of printing. Atlantic Technology reserves the right
to change specifications or appearance at any time without notice.
THX, and THX Select are trademarks of THX Inc. Dolby Digital, 5.1, Dolby Stereo and Dolby Pro
Logic are trademarks of Dolby Laboratories Licensing Corporation. DTS is a registered trade-
mark of DTS Technology.
015-1305
|