2
IWTS-155 LCR In-Wall THX Ultra2 Theater System Speakers
For Future Reference
Record your serial numbers and date of purchase here:
Model Number
Serial Number
Date of Purchase
The serial number is found on the back panel.
Safety Precautions
Copyright © 2009 Atlantic Technology International.
Specifications are those in effect at the time of printing. Atlantic Technology reserves the
right to change specifications or designs at any time without notice.
Model IWTS-155 LCR
In Wall THX Ultra2 Theater System
Speakers
Thank you for purchasing Atlantic Technology products. Our speaker sys-
tems have been designed to deliver exceptional sound and value. We hope
you like what you hear from them, and are happy with your decision to
buy them.
Please take a few moments to read these instructions. They’re intended not
only to tell you how to mount the speakers, but how to get the best perfor-
mance from them.
What’s THX?
THX is a series of standards and technologies originally developed by
LucasFilm Ltd. (of Star Wars fame) and now an entity unto itself. These
technologies and standards are intended to ensure that what you hear and
see on your A/V system, as closely as possible, matches what the director/
artist/engineer heard and saw during the final mixing of the source mate-
rial. THX standards are intended to enhance every type of viewing and
listening experience including the latest discrete multi-channel digital for-
mats. Please note however that, although there is proprietary THX electronic
processing, THX is not a surround format.
THX Ultra2 standards are based on a 3000 cubic foot room (L x W x H =
cu. ft.). This does not mean Ultra2 certified components must be used in
rooms this exact size. The room sizes simply provide a frame of reference,
as the standards specify that the system must deliver certain performance
minimums (volume, frequency response, etc.) in the specified space. For
more information, see the THX website at www.thx.com.
Table of Contents
Safety Precautions
2 Model IWTS-155 LCR
3 Important Considerations Before Installation
3
Recommended Wire Sizes
3
Location Considerations
3
Room Acoustics
3 Speaker Placement
3
Stereo Music Listening
4
Home Theater Systems
5 Mounting the IWTS-155 Speakers
5 Installation of the IWTS-155 in New Construction
with Optional Back Box
5 Installation of the IWTS-155 in Existing Construction
without Optional Back Box
5
Removing and Installing the Grille
5
Cutting the Opening
6
Installing the Mounting Frame
6
Painting the Speaker Assembly
6
Speaker Connection and Assembly
6
Installing the Speaker Enclosure Into the Frame
7 Front Panel Controls
7
HF (High Frequency) Level Control
7
Boundary Compensation Control
7
Directional Vector Control™
7
IR Knockout
7 Specifications