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Introduction
The AT or Advanced Technology group of
In-Wall Loudspeakers are designed to
deliver truly stunning performance with
optimum installation flexibility. All models
in the AT series are constructed using the
highest quality components and utilize
advanced materials technology to create
speakers capable of reproducing both
music and movie soundtracks with stun-
ning realism and sonic impact. They are
perfect anywhere that quality of sound is
the most important consideration.
An AT8500/AT8700 Series Speaker Kit;
AT8000 Series Bracket Kit; and an
AT8000 Series Frame/Grille Kit are
required to install one pair of AT8500,
AT8700 In-Wall Loudspeakers in either
new or existing construction.
Features and Benefits
Patent Pending Dispersion Control
Array with Directed Sound Field
Geometry
™ (DSFG)
Both the AT8500 and AT8700 models
employ Niles’ Directed Sound Field
Geometry (DSFG). With DSFG, the tweeter
is offset from the center of the dual
midrange drivers. The resulting acoustic
interaction between the dual midrange dri-
vers and the offset tweeter directs the flattest
frequency and phase response approxi-
mately 15 degrees off-axis from the tweeter.
By mounting this innovative midrange/
tweeter design on 360 degree rotating and
30 degree swiveling low diffraction
Dispersion Control Array, the AT8500 and
AT8700 models can deliver pinpoint imag-
ing and optimum phase and frequency
response regardless of speaker placement or
listening position.
High Performance Woofer and
Tweeter Designs
Both the AT8500 and AT8700 models
incorporate woofer designs which feature
cast aluminum frames, vented pole pieces,
custom debris screens, inverted dust caps,
butyl rubber surrounds, and Niles
BumpBack™ magnet structure to provide
powerful and accurate bass response.
Additionally, the AT8700 features a bi-filer
voice coil winding which enhances the
speaker’s already flat frequency response
characteristics, lowers distortion, and
increases the woofer’s efficiency.
AT8500—Aluminum/Urethane
Composite Woofer
The AT8500’s 8” woofer is constructed of a
composite of aluminum and urethane
which is extremely light, highly efficient,
and offers superior damping characteristics.
Dual Hyperbolic Aluminum/Urethane
Dome Midranges and Tweeter
The AT8500’s dual 1-1/2” midrange drivers
and single 1” tweeter incorporate the same
aluminum/urethane composite used in the
construction of the AT8500’s woofer. The
result is a very natural sounding speaker
capable of reproducing mids and highs
with superb detail and accuracy.
AT8700—Aluminum/Titanium/Urethane
Composite Woofer
The AT8700’s 8” woofer is constructed of a
three layer composite of aluminum, titani-
um, and urethane to offer unparalleled
rigidity, excellent transient response, and
very low distortion.
Dual Hyperbolic Dome Midranges
and Tweeter
The AT8700’s dual 1-1/2” midrange drivers
and single 1” tweeter all share composite
design consisting of an inner aluminum
layer that forms the dome, a stiffening layer
of titanium, and a damping layer of ure-
thane to kill unwanted resonances.
Features and Benefits
1
Patent Pending
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