Atlantic Technology IWTS-4 LCR Operating manual

“Entry-level” doesn’t apply
to its sound.
The Atlantic Technology IWTS-4 LCR is our lowest-
priced in-wall speaker but it borrows much of its
technology and simplicity of installation from its more
costly brethren.
This speaker uses a 6 ½” GLH (Graphite-Loaded
Homopolymer) woofer for solid bass down to 57 Hz
and Atlantic’s renowned 1” soft-dome Low Resonance
Tweeter (LRT™). Because of its low crossover point,
this remarkable tweeter allows the IWTS-4 LCR
to deliver much wider midrange dispersion than
conventional in-wall speakers for greater placement
flexibility, without the severe acoustic and mechanical
drawbacks of the so-called “pivoting tweeter.”
Here’s why: The woofer in conventional in-wall
speakers handles too much of the midrange and
woofers send out the midrange like a flashlight beam—
pretty much only straight ahead, with very little sound
side-to-side or up-and-down. So even if these speakers
have a pivoting tweeter, that doesn’t really help, since
it’s the woofer, not the tweeter, that handles the
directionally-critical midrange frequencies.
What’s needed is a speaker where the tweeter, not the
woofer, handles more of the midrange, because unlike
woofers, tweeters spread their sound out over a very
wide area.
Because of this, Atlantic has engineered an extremely sophisticated, high-performance
tweeter (the Low Resonance Tweeter, or LRT™) for the IWTS-4 LCR, and it can play
most of the middle tones as well, thereby relieving the woofer of having to do what
woofers can’t do. Our LRT tweeter spreads out the midrange sound over a much wider
angle than the woofer, so the IWTS-4 covers the entire listening area beautifully in
both the midrange and treble, even when it’s mounted high up on the wall. This tweeter
technology was originally developed for our In-Wall Closed Box series (retailing for up to
$1000 ea.), but is now available in the IWTS-4 LCR, at a fraction of the price. We know
of no similarly-priced in-wall speaker that can match its performance.
Product Information Sheet
IWTS-4 LCR In-Wall HT System

Specs
Type 2-way
Drivers Woofer 6 ½” (165mm) GLH*
Tweeter 1” (25mm) LRT soft dome
Frequency Response 57Hz – 20kHz ±3dB
Nominal Impedance 6 Ohms
Crossover Frequency 2.4kHz, 3rd order
Sensitivity 88dB
Recommended Power 10 – 100 Watts RMS
Overall Dimensions 8¾ x 121⁄8x 3¾”
(W x H x D) 223 x 308 x 96mm
Cutout Dimensions 75⁄8x 11”
(W x H) 194 x 280mm
Net Weight 6lbs; 2.7kg each
*Graphite Loaded Homopolymer
The IWTS-4 LCR uses a separate baffle/frame installation assembly, so the frame
and grille can be installed first and painted to match the room at the time the walls
are being painted. The speaker baffle simply screws into the frame at a later date.
Very convenient.
A 3-position High Frequency switch located on the baffle lets the user tailor the
speaker’s sound to the room’s acoustics, or to adjust the HF balance for personal
taste. For the perfect finishing touch, the IWTS-4 LCR incorporates an aluminum
tweeter faceplate with a precision horn, which optimizes the tweeter’s dispersion and
gives the speaker an unmistakably consistent family appearance in keeping with our
more expensive in-wall models.
Gold plated connectors
Audiophile-grade crossover
Atlantic’s renowned 1” LRT™ soft
dome tweeter
Paintable grille and frame
Adjustable High Frequency switch
©2008 Atlantic Technology •343 Vanderbilt Ave.
Norwood, MA 02062 •781.762.6300
www.atlantictechnology.com 2.08
Atlantic Technology is a registered trademark of Atlantic Technology
International. Specifications subject to change without notice.
IWTS-4 LCR In-Wall HT System