InWall
Theater
System 20 THX
State of The Art In Wall Performance
Spectacular Sonics. Flexible Mounting. Unobtrusive Design.
It Doesn't Get Much Better Than This!
For more than a decade Atlantic Technology has specialized in creating high performance,
high value home theater speaker systems. Our decision to build in-wall speakers wasn’t
taken lightly. Since we’re unwilling to compromise our standards of performance and value,
we knew we had to create in-wall systems that, in every regard, matched our existing
enclosed speakers.
The InWall Theater System 20 THX is our top of the line in-wall, THX Ultra™ certified
grouping. It’s comprised of two exceptionally sophisticated speakers whose lineage traces
directly to our highly regarded System 370 THX. What’s more, the System 20 LCR front
satellite and System 20 SR Dipole/Bipole surround were developed as elements of a fully
integrated home entertainment speaker system, created to provide exemplary movie and
music reproduction. They blend superbly with each other and with other Atlantic speakers,
including our award winning center channels, surround speakers, and subwoofers. The System
High performance CCMG cone drivers.
20 THX will effortlessly fill large rooms with amazingly natural sound. An Atlantic THX Ultra
certified subwoofer, to provide powerful, articulate bass reproduction, is all that's needed for
a complete multi-channel THX speaker system.
System 20 Crossover with audiophile grade
components and gold connectors.
Rotating midrange/high frequency array
The Great Wall ... of Great Sound
Time for a reality check. An accurate speaker is an accurate speaker. It doesn’t have any idea
whether it’s reproducing movies or music. Essentially then, there should be little difference
between a home theater and pure music system. And that’s precisely the case with System
20 THX. These speakers are equally adept in any type of home sound system and with any
type of source material.
Truth be told, sound quality is a secondary concern when many companies design their in-
wall speakers. Far more effort goes into their visual design and ease of installation. But
we’ve gone way beyond the ordinary to ensure that System 20 THX delivers the kind of
accurate sound we’ve become famous for. We carefully maximized every technical advantage
offered by in-wall mounting and minimized every problem area during the design process.
After all, we believe the goal of home theater isn’t to place you in the movie theater, it’s to
place you in the movie. To do this the speakers must create a new "sound space" in your
room. Whether it’s the jungle or The Jetsons, we want you caught up in the experience.
The System 20 LCR is essentially an in-wall optimized version of our 371 LR satellite
speaker. It delivers superior sound quality and dialogue intelligibility while becoming almost
invisible in your room. It’s arguably the first in-wall speaker (and certainly the most
affordable) capable of competing with high end enclosed systems. Its flexible mounting
system, and its rotatable, tiltable D’Appolito array, lets it deliver optimum performance in
practically any room.
Stick'em Up. You're Surrounded!
The System 20 SR is called a surround speaker because that's what it does – it surrounds
you with the environmental sounds of the scene taking place on the screen. No matter
whether in Dolby Surround®, Dolby Digital®, DTS®, or any other format, the surround
speakers are most often there to deliver non-localizable environmental sonic cues.
The horizontally mounted System 20 SR offers a unique combination of benefits. It delivers
true Dipole surround performance, and yet, thanks to it minimum footprint design, fits easily
into a standard 2 x 4 studded wall! Each System 20 SR consists of two sets of matched
drivers – in essence it is two speaker systems. In Dipole mode these two systems operate
“out of phase” with each other. The speaker’s sound radiation pattern is similar to an infinity
symbol (∞), sweeping along the wall to each side. There’s a distinct null or “dead zone”
centered directly in front of the speaker which is in turn centered on the seating area. When
properly placed and balanced, this creates a large, diffuse, non-localizable, and enveloping
sound field that draws you into the action. Should you have an installation in which Dipole
operation might be difficult, the speaker can easily be switched to Bipole operation.
InWall
Theater Systems
What Exactly is THX?
THX started as a series of standards and technologies developed by Lucasfilm Ltd™ (of Star
War s fame) for commercial movie theaters. It was created to ensure that the picture and
sound you experience in the theater, as closely as possible, matches what the director heard
and saw during the final mix-down of the film.
A set of THX standards and technologies for home theater systems were created to bring
the same level of performance into people’s homes. THX is the first truly comprehensive
set of performance standards in the history of high fidelity audio. The THX standards include
enhancements and requirements for dispersion characteristics, frequency response, distortion,
sensitivity, output levels, proper surround field generation, and in-room subwoofer
performance. Using THX certified components enhances every type of viewing and listening
experience, including the latest discrete multi-channel digital formats. (Please note that THX
is not a format that must be decoded like Dolby Digital® or DTS®.)
Conclusion
System 20 THX brings a new level of musicality and accuracy to in-wall speakers, following
in the footsteps of its sibling, the highly regarded System 370 THX. It’s now possible to
install a nearly invisible music and home theater system that competes head to head
with the highest quality traditional speakers. We’re proud to have developed and
introduced this advanced speaker system. It quite simply sets a new standard of performance
for in-wall speakers.
System 20 SR
The System 20 SR is the first true Dipole speaker
that mounts in a standard 2 x 4 studded wall.
System 20 LCR
InWall
Theater Systems
System 20 LCR Specifications
THX Certification
THX Ultra
Dimensions
19.09"H x 10.63"W x 3.7"D
(485 x 270 x 94mm)
Cut-out Dimensions
1713/16" x 93/8" (452 x 238mm)
Optimum wall volume
1.0 cu. ft. or more
Recommended Placement
Ver tical or Horizontal
(Rotating Mid/high assembly)
Frequency Response
56 - 20kHz ± 2dB
Sensitivity
89dB, 1 watt, 1 meter
Impedance
6 Ohms
Crossover Frequency
400Hz, 5.500kHz, 3rd order
Drivers/Design
1 - 8" CCMG woofer
2 - 3.5" CCMG midranges
1 - 1" Silk dome tweeter
3 way, using a D'Appolito array
Recommended Power
50 - 200 watts
Net Weight
12 pounds each
Recommended Subwoofers
Subwoofer(s):
272 PBM (THX Select)
372 PBM/452 PBM (THX Ultra)
System 20 SR Specifications
THX Certification
THX Ultra
Dimensions
12.05"H x 15.6"W x 3.75"D
(306 x 396 x 95mm)
Cut-out Dimensions
11" x 143/8" (279 x 365mm)
Minimum wall volume
0.5 cu. ft.
Recommended Placement
Horizontal, directly to the side of the audience
18" above seated ear height to no less than
24" down from the ceiling
Frequency Response
80 - 20kHz ± 3dB
Sensitivity
87dB, 1 watt, 1 meter
Impedance
6 Ohms
Crossover Frequency
3.5kHz, 3rd order
Drivers/Design
2 - 5 1/4" CCMG woofers
3
/4" Silk dome tweeters
2 2 - way, switchable Dipole/Bipole
Recommended Power
25 - 150 watts
Net Weight
9 pounds each
Recommended Systems
May be used with Atlantic Technology systems:
270 THX (THX Select), 370 THX/450e THX
(THX Ultra) or any high quality multichannel
surround system
System 20 SR
Technical Highlights (For the Right Brain Crowd)
System 20 LCR
The Mid-High assembly can be detached and rotated for best performance, horizontally or
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vertically. It also may be tilted 5 degrees up or down to further optimize sound quality.
Front mounted High Frequency and Midrange Level controls allow precise adjustment of the
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speaker’s sound in any room.
An optional rear enclosure provides ideal volume for the woofer and limited isolation for the
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adjacent room.
System 20 SR
System 20 SR is a Frequency Enhanced Dipole. It operates as a Monopole from 200Hz down,
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thereby eliminating the Dipole’s tendency to cancel its own bass output. It is a true wide range
speaker, fully capable of taking advantage of the latest Digital multi-channel formats.
A front mounted switch changes the System 20 SR to Bipole mode.
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The System 20 SR fits in standard “two by four”, sixteen inch on-center wall construction.
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System 20 LCR and System 20 SR
Both speakers feature computer optimized 18dB/octave crossovers with air core inductors.
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Input connections are made with gold plated, heavy duty spring loaded terminals that will
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accept up to 8 gauge wire, banana plugs, or connector pins.
Paint shields are supplied making it easy to paint System 20 speakers to match the
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surrounding wall surface.
Atlantic Technology
343 Vanderbilt Ave.
Norwood, MA 02062
781-762-6300
www.atlantictechnology.com
Copyright© 2000 The IWTS logo and InWall Theater
Systems are trademarks of Atlantic Technology
THX, THX Select, and THX Ultra are trademarks of Lucasfilm, Ltd.
Dolby Digital and Dolby Surround are a trademarks of Dolby Laboratories
DTS is a trademark of Digital Theater Systems
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