Atlantic Technology IWTS 30 SR User Manual

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 1soft 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 stereoimagewhen 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 34”  
IWTS-14 SR  
(273mm)  
and IWTS-30 SR  
Mounting Template  
14 14”  
(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 358”  
(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)  
1558 x 1218 x 3¾"  
397 x 308 x 96mm  
1558 x 1218 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.  
343 Vanderbilt Avenue Norwood, MA 02062 (781) 762-6300 www.atlantictechnology.com  
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