Atlas IED AH99-8T-BSG Data Sheet

AH99-8T-BSG

8" 2-Way Stadium Horn System 90° x 90°

Installation

A heavy-duty stainless steel "C" style mounting bracket is included with
the AH99-8T-BSG to allow easy mounting to most any flat surface. Three
drop forged eyebolts are also pre-installed (2-front of horn plus 1-rear for
"pull-up") for suspension mounting via load rated wire rope. (Use caution
when suspending any object overhead. Refer to installation manual for
more details).

The AH99-8T-BSG includes a weather resistant 7 pole terminal block
connector on the underside of the speaker for ease of hook-up. This
terminal block includes connection points for internal 70.7V transformer
with taps settings of 7.5, 15, 30, and 60 watts and 8Ω connection for
transformer bypass.

AH99-8T-BSG

Features

• Heavy Duty Mounting Bracket (Included) Allows for Easy Installation to
Most Any Flat Surface

• Three Forged Eyebolts Also Included for Suspended Installation

• 100 Watts Power Handling

• Constant Directivity Design Offers Controlled Coverage of 90°

Horizontal by 90° Vertical (2kHz Octave Band)

• Driver Compliment Includes 8" Cast Frame Woofer with a Concentrically
Mounted 1" Exit Compression Driver Coupled to a 90° H x 90°V HF horn

• Easy, Weather Resistant Connection Via a Convenient Recessed

Terminal Block Located on the Bottom of the Loudspeaker

• Includes a Built-In, High Efficiency 60 Watt 70.7V Transformer

• Efficiency Rating of 101dB (1 W/1 M)

• Maximum Output of 121dB (Rated Power @ 1 M)

Applications

Atlas Sound model AH99-8T-BSG stadium horn is ideal for directional sound
distribution where full range reproduction, maximum intelligibility, and high
sound pressure levels are required. Applications include football stadiums,
sports arenas, baseball fields, convention centers, and auditoriums.

Weather resistant construction features of the AH99-8T-BSG include a
multiple screen configuration to prevent moisture from damaging internal
components, a perforated aluminum screen covers the large horn mouth,
a secondary screen is in place forward of the high frequency driver, and a
third tightly perforated screen protects the 8" cast frame woofer.

AH99-8T-BSG

©2013 Atlas Sound L.P. All rights reserved. Atlas Sound and Strategy Series are trademarks of Atlas Sound L.P. All other trademarks are the property of their respective owners. ATS004768 RevA 11/13

1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: [phone]
FAX [phone]

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Specifications

Power Rating 100 watts
Sensitivity 1W/1M 101dB SPL (70Hz to 17kHz 1⁄3 octave bands)
Frequency Response 90Hz - 15kHz (±5dB)
Dispersion 90° x 90°
Impedance 8Ω Nominal
Transformer Taps 7.5, 15, 30 and, 60
Height 21.88" (555.75mm)
Width 19.66" (499.36mm)
Depth 19.73" (501.14mm)
Shipping Weight 64 lbs (24.5kg)
Driver Type 1" HF and 8" LF

Architect & Engineer Specifications

Loudspeaker shall be Atlas Sound Model AH99-8T-BSG or approved equal.

The loudspeaker system shall be a horn-loaded, 2-way design with an 8"
inch polycone woofer.

The loudspeaker system shall include an 8", horn loaded, cast frame
woofer and an integral, concentrically mounted 1" exit compression
driver coupled to a constant directivity high frequency horn. The three
pole (18dB/octave) dividing network shall have a crossover frequency
of 1.8kHz. The dividing network shall include a poly switch protection
circuit for the high-frequency component.

The loudspeaker system shall be capable of providing a sound dispersion
angle of 90˚ horizontal by 90˚ vertical in the 2kHz octave band.

Rated power shall be 100 watts RMS based on EIA Standard RS-426B.*

Enclosure shall be UV-resistant, low pressure injection molded fiberglass
and shall include a 3 stage multiple mesh filter system for weather and
rodent resistance: to include a 20-gauge perforated aluminum screen on
front mouth assembly, a 100 x 100 weave stainless steel mesh between
HF horn and HF driver and a 100 x 100 weave stainless steel mesh over
8" woofer. The loudspeaker shall include a stamped and formed, 2mm
stainless steel powder coated mounting bracket assembly for surface
mounting and three M8 drop forged eyebolts for suspension mounting
two at the front and one at the rear to allow the speaker system to be
suspended and aimed using rated wire rope.

1

Sensitivity shall be 100dB SPL (90Hz – 15kHz in
measured at a distance of one meter on axis with a one watt input half
space (2.83V).

Overall frequency response shall be 90Hz – 15kHz (±5dB).

The input section located on the bottom rear of the loudspeaker shall be
via 7 position screw down terminal strip internally configured to allow
input to an internally mounted 70.7V transformer with 7.5, 15, 30, &
60 watts taps and a bypass jumper direct coupled to the Speaker for
nominal 8Ω operation. The system connections shall be protected from
the elements by a screw affixed weather resistant cover.

Dimensions shall be: Height: 21.88" (555.75mm)

Width: 19.66" (499.36mm)
Depth: 19.73" (501.14mm)
Weight: 64 lbs (24.5kg)

* EIA test spectrum is applied for eight hours.

(This procedure provides a rigorous test of both thermal and
mechanical failure modes.)

⁄3 octave bands)

19.66"

19.66

©2013 Atlas Sound L.P. All rights reserved. Atlas Sound and Strategy Series are trademarks of Atlas Sound L.P. All other trademarks are the property of their respective owners. ATS004768 RevA 11/13

1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: [phone]
FAX [phone]

(499.36mm)

19.73"

18.41

(501.14mm)

12.03"

12.03

(305.56mm)

AtlasSound.com

21.88"

20.05

(555.75mm)

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