Atlantic Technology IW-155SR User manual

Instruction Manual
IW-155SR
High Performance In-Wall
Surround Speakers
DIPOLE
DIPOLE
BIPOLE
BIPOLE
IW-155SR

2
IW-155SR High Performance In-Wall Surround Speakers
Table of Contents
e contents of this manual are Copyright © 2015 by Atlantic Technology International, Corp., and may not be
duplicated or reproduced by any means, whether physical, electronic or otherwise without prior written consent
from Atlantic Technology International, Corp.
Atlantic Technology and the Atlantic Technology logo are registered trademarks of Atlantic Technology Inter-
national, Corp. THX is a trademark of THX Inc. Dolby Digital 5.1, Dolby Digital 7.1, Dolby Atmos, and Dolby
Pro Logic are trademarks of Dolby Laboratories Licensing Corporation. DTS is a registered trademark of DTS
Technology.
Specications are those in eect at the time of printing. As part of our ongoing program of continuous product
improvement, Atlantic Technology reserves the right to change specications or appearance at any time without
notice or obligation to modify existing product.
Table of Contents
3 Unpacking the Speakers
3 Speaker Description
4 Speaker Placement
5IW-155SR as a Side Surround and Rear Speakers in Dolby Digital 7.1 System
6 Speaker Installation
6 Installation of the IW-155SR in New Construction with Optional New
Construction Bracket
6 Installation of the IW-155SR in Existing Construction
7 Removing and Installing the Grille
7 Painting the Grille and Frame
8 Cutting the Opening
8 Connecting the IW-155SR to Your System
8 Speaker Connection
9 Installing the Speaker Assembly
9 Speaker Setup
9Dipole/Bipole Operation of IW-155SR
10 Tweeter Positioning
10 IR Knockout
10 Specications
11 Warranty
12 Warranty
For Future Reference
Record the serial number and date of purchase for each speaker here. e serial number is found on the speaker
terminal panel on the back of the enclosure.
Serial Number
Serial Number
Date of Purchase

Instruction Manual
3
Unpacking Speakers
IW-155SR
High Performance In-Wall Surround Speakers
ank you for choosing Atlantic Technology. e IW-155SR speaker is precision-craed to
give you years of enjoyable, trouble-free service. is manual will show you how to incorpo-
rate your new speaker into your present setup, as well as how to assemble a complete sys-
tem. e IW-155SR can be used with all current and past surround sound formats including
Dolby Surround®, Dolby Pro Logic®, Dolby Digital 5.1®, Dolby Digital 7.1®, Dolby Atmos ®,
DTS®, DTS ES®, DTS ES Discrete®, DTS Neo:6®, DVD-Audio, Auro 3D and SACD Audio.
IMPORTANT: Although it may seem like asking for driving directions, please take a few
moments to read all of this booklet. It has many helpful tips and ideas on properly setting
up and using your system. We promise that if you take the time to read and follow these
tips you’ll get better system performance and more enjoyment.
Unpacking the Speakers
Use care when unpacking the speaker. Remember to save all packing materials until you
are certain that the speaker has suered no damage in shipment. If you nd such damage,
either visible or internal, contact your dealer immediately.
If you can do so, save the carton, packing pieces, and plastic bags that came with your
speakers. ey will be useful if you move or have to ship your loudspeaker for any reason.
Speaker Description
e IW-155SR is a thin-bezel in-wall surround speaker that delivers spacious, enveloping
surround eects for top grade home theater systems. It features an innovative dual-concen-
tric driver design capable of lling the listening area with either three-dimensional ambient
sound or object-based positional audio essential for lifelike theater sound.
e IW-155SR consists of dual 5.25” woofers and dual concentric 1” silk dome tweeters
mounted in a resonant-free MDF bae. e speaker is a switchable dipole/bipole design;
that is, the two sets of drivers can either be set for out-of-phase (dipole) operation, ideal for
a diuse, non-localizable sound, or set for in-phase (bipole) operation, for a more direct,
localizable eect, perfectly suited for object-based audio formats such as Dolby Atmos.
Either mode will ll a large home listening area with dramatic surround eects. e thin
bezel grille is magnetically attached to the frame and can be easily painted to match virtu-
ally any décor.

4
IW-155SR High Performance In-Wall Surround Speakers
Speaker Placement
e IW-155SR should be installed horizontally with the tweeters pointing to sides and the
IR knock out (round Atlantic Technology logo in the corner) should be facing the front
of the room to keep proper phase with the front channel speakers. is is for both Dipole
and Bipole switch settings.
Speaker Placement
When using the IW-155SR as a side channel surround speaker in a 5.1 or 7.1 home theater,
the speaker should be installed directly to the sides of the seating area and no more than
1-2 feet above the listener’s ear level. (see diagram)
When using the IW-155SR as a rear channel in a 7.1 home theater, divide the back wall into
thirds and install the speakers on center of each third. (see diagram). ey should be at the
same height as the side channel speakers. e IR Knock out should be facing the side walls.
NOTE: We do not recommend the IW-155SR for use in the ceiling. For ceiling mount sur-
round purposes we recommend either our IC-6.3, IC-6OBA or IC-8.3 speakers.
DIPOLE
DIPOLE
BIPOLE
BIPOLE
IR Knockout
Front of Room

Instruction Manual
5
Speaker Placement
Left Center Right
Subwoofer
Front Speaker Array should be
placed as close to ear level as
possible. Place the Left and Right
speakers about 6-10 feet apart.
Surround Speakers. When using
the IW-155SR as a side channel
surround speaker in a 5.1 or 7.1
home theater, the speaker should be
installed directly to the sides of the
seating area and no more than 1-2
feet above the listener’s ear level.
Subwoofer
placement is
dependent on room
size and shape.
Experiment to nd a
location that
produces the
smoothest response.
Surround Back Speakers. When using the IW-155SR
as a rear channel in a 7.1 home theater, divide the
back wall into thirds and install the speakers on
center of each third. They should be at the same
height as the side channel speakers. The IR Knock
out should be facing away from the side walls.
IW-155SR as Side Surround and Rear Speakers in Dolby Digital
7.1 system.
NOTE: We do not recommend the IW-155SR for use in the ceiling. For ceiling mount
surround purposes we recommend either our IC-6.3, IC-6OBA or IC-8.3 speakers.

6
IW-155SR High Performance In-Wall Surround Speakers
Removing and Installing the Grille
Remove the grille from the speaker using the supplied tool, an awl or the point of a dry-
wall 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 nish.
To re-install the grille later, press it carefully into the appropriate opening in the frame
assembly. It is designed to be held in place with magnets and t snugly into the groove.
Please take your time and use care when installing the grille.
Painting the Grille and Frame
e IW-155SR grille can be painted to blend into virtually any décor. e grille has a remov-
able scrim behind the metal to conceal the IW-155SR’s drivers. Before painting remove the
grille, carefully remove the fabric scrim from the inside of the metal grille using a tweezers
or needle-nosed pliers, starting at a corner of the grille and carefully pulling diagonally
across the length of the grille. Lay the scrim on the cutout template and store it in the
provided plastic bag to protect the scrim from indirect paint spray and damage while the
grille is being painted.
Once the scrim is removed, carefully remove the speaker from the bae by removing the
screws shown in gure below. Set the speaker aside in a safe place. You can now install the
grille and paint the grille and trim bezel. Be sure to keep the holes in the grille free of paint.
An airless sprayer or spray paint will work best. Aer the paint is dry you can reinstall the
speaker, reattach the scrim and reinstall the grille.
DIPOLE
DIPOLE
BIPOLE
BIPOLE
Removing and Installing the Grille

Instruction Manual
7
Speaker Installation
NOTE: We always recommend a professional be involved in the installation of the
IW-155SR.
Installation of the IW-155SR in New Construction with Optional
New Construction Bracket
For new construction, we highly recommend that
you use the optional IN-NC-155 New Construc-
tion Bracket.
e lip on the New Construction Bracket must
face outwards into the room. Wallboard is then
installed up to the lip, leaving a perfectly-dened
mounting hole for the speakers. Use a level to get
it straight; this can't be xed later.
Installation of the IW-155SR in Existing Construction
e IW-155SR can be easily mounted in most
any standard wall material, from ½ to 1½ inches
(12 to 38mm) thick. e IW-155SR rotating wall
clamps rmly x it to the wall surface aer 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 (38mm) away from beams or obstructions 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.
DIPOLE
DIPOLE
BIPOLE
BIPOLE
Speaker Installation

8
IW-155SR High Performance In-Wall Surround Speakers
Cutting the Opening
Aer determining the best location for
the speaker as outlined previously, use the
enclosed template to cut the proper size
hole.
14 ¼” x 7 1 ⁄8” (368mm x 181mm)
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 loca-
tion of wires and pipes by looking at the
locations of nearby outlets and plumb-
ing. But their location or absence is never
an assurance that there is not something
within the wall cavity.
Connecting the IW-155SR to Your System
WARNING: To prevent risk of electrical shock or damage to your equipment,always
switch off the amplier or receiver when making any system connections.
Speaker Connection
It's important to observe polarity while making speaker connections: red (+) terminals on
the amplier to re (+) on the speaker, black(-) on the amplier to black (-) on the speaker.
Look carefully at the wires you are using and note one of the conductors of each pair will
typically be identied by either color, printing on the outer jacket, ridges on the outer jacket,
or a thread intertwined with the wire strands. By convention, the marked wire is connected
to the red (+) terminal.
We recommend that you connect your speakers using high-quality dual conductor stranded
wire of 16 gauge or heavier, for lengths up to 25 feet (8m). Remember, the lower the gauge
number, the heavier the wire. Use heavier gauge wire for longer runs. Please contact your
audio/video dealer or installer for specic cable recommendations and further informa-
tion regarding special circumstances. e terminals themselves are designed to allow the
use of very heavy speaker wire or connectors.
Strip about ½" (13mm) 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).
WARNING: Before turning on the amplier, be certain that no stray wire strands are
touching across any terminals as this might damage your amplier.
IW-155LCR/SR
Mounting
Template
Cutting the Opening

Instruction Manual
9
Installing the Speaker Assembly
e clamping mechanism allows
the wall material to range from
½" to 1½" (12 to 38 mm) in
thickness. ere must be a min-
imum depth behind the wall
face of 3 5⁄8” (92 mm). As noted
above, be sure to keep the top
and bottom 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 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.
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 care-
ful not to overtighten the screws.
It is strongly recommended that you hand-tighten the mounting screws the nal few
turns (aer using an electric screwdriver set to "low torque") to avoid the possibility of
damaging the frame.
Speaker Setup
Dipole/Bipole Operation of IW-155SR
When using the IW-155SR in a Dolby Pro Logic®, Dolby Digital
5.1, 7.1 or 9.1, Dolby True HD or DTS Master Audio-based home
theater, we recommend setting the switch to DIPOLE.
When using the IW-155SR in a Dolby Atmos or DTS-X® home
theater, we recommend setting the switch to BIPOLE. e posi-
tional audio in Dolby Atmos and other object-based systems are engineered to create a
more precisely-localizable surround eect. erefore we believe speakers set to BIPOLE
will typically outperform dipole speakers in an object based system.
DIPOLE
DIPOLE
BIPOLE
BIPOLE
Installing the Speaker
DIPOLE
DIPOLE
BIPOLE
BIPOLE

10
IW-155SR High Performance In-Wall Surround Speakers
Tweeter Positioning
e tweeters are adjustable to allow you to posi-
tion them so you have the greater exibility in
your environment. We recommend you start with
the tweeters facing outward to provide the best
performance. In dipole mode this positioning cre-
ates a better ‘null’ between the drivers. In bipole
mode it provides greater coverage.
However, feel free to experiment with both switch and tweeter positions. Given the eas-
ily removable magnetic grille, it is possible to make adjustments depending on program
requirements or personal preference.
IR Knockout
ere is an IR "knockout" plug in the upper right corner of the bae
behind the logo. If you need, you can install a standard IR receiver in the
knockout hole.
Specications
IW-155SR
Type 2-way dipole/bipole switchable
Drivers Woofer (2) 5 ¼” (135mm) GLH*
Tweeter (2) 1” (25.4mm) soft dome
Frequency Response 80-20kHz ±3dB
Nominal Impedance 6Ω
Crossover Frequency 3500Hz
Sensitivity 88dB
Recommended Power 25 – 150 Watts
Overall Dimensions (W x H x D) 15½ x 8½ x 3¾”
395 x 216 x 97mm
Cutout Dimensions (W x H) 14¼ x 7
1⁄8
”
362 x 181mm
Optimum Sealed Enclosure Volume 1.0 cu. ft.
Net Weight (ea) 8lbs; 3.7kg
Optional New Construction Bracket IN-NC-155
*Graphite Loaded Homopolymer IR Receiver not included.
Specications are those in effect at the time of printing. As part of our ongoing program of continuous product improve-
ment, Atlantic Technology reserves the right to change specications or appearance at any time without notice or obli-
gation to modify existing product..
DIPOLE
DIPOLE
BIPOLE
BIPOLE
Specications
DIPOLE
DIPOLE
BIPOLE
BIPOLE