Niles Audio AT8500, AT8700 manual Introduction, High Performance Woofer and Tweeter Designs

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

Patent Pending

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