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AH54-15-BSG
15" 2-Way Stadium Horn System 50° x 40°
Installation
A heavy-duty stainless steel "C" style mounting bracket is included with
the AH54-15-BSG to allow easy mounting to most any flat surface. Three
drop forge 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 AH54-15-BSG includes a parallel wired, weather resistant 4 pole
terminal block connector on the underside of the device for easy
hook-up and daisy chain wiring to other AH54-15-BSG’s. If 70.7V/100V
operation is required the optional Atlas Sound AF140 autoformer may
be used. NOTE: Due to the full range operation capabilities of the AH5415-BSG 70.V/100V operation although possible, is discouraged. Better
frequency response and amplifier dampening factor can be realized by
using large gauge (#10 to #12) home runs and series/parallel hook-up
wiring at the head end location with direct coupled, low impedance
amplifiers. Generally speaking, this improvement of frequency response
and amplifier dampening factor is worth the sacrifice of line loss over
distance - especially if transformer insertion loss at the loudspeaker
location is considered.
AH54-15-BSG
Features
• Efficiency Rating of 104dB (1 W/1 M)
• 250 Watts Power Handling
• Maximum Output of 128dB (Rated Power @ 1 M)
• Constant Directivity Design Offers Controlled Coverage of 50˚
Horizontal by 40˚ Vertical (2kHz Octave Band)
• Excellent Low Frequency Response Down to 80Hz (–5dB) Provides
Bass You Can Feel
• Driver Compliment Includes a 15" Cast Frame Woofer with a
Concentrically Mounted 1" Exit Compression Driver Coupled to a
50˚ H x 40˚V HF Horn
• Full Range Frequency Response of 75Hz – 17kHz (± 5dB)
• Easy, Weather Resistant Connection Via Parallel 4 Pole Terminal Strip
• 8Ω Nominal System Impedance (70.7V Operation Via Optional
Atlas Sound Model AF140 Transformer)
• Heavy Duty Stainless Steel Mounting Bracket (Included) Allows for Easy
Installation to Most Any Flat Surface
• Three Forged Eyebolts Also Included for Suspended Installation
Applications
Atlas Sound model AH54-15-BSG stadium horn is ideal for directional
sound distribution where full range reproduction, maximum intellig ibility, 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 AH54-15-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 15" cast frame woofer.
©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. ATS004764 RevA 11/13
AH54-15-BSG
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
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Specifications
Power Rating 250 watts (45V) RMS
350 watts (53V) Peak
Sensitivity (1 W / 1 M) 104dB SPL (70Hz – 17kHz 1⁄3 octave
bands)
Frequency Response 75Hz - 17kHz (±5dB)
Dispersion: 50˚ x 40˚
Impedance 8Ω Nominal
Minimum Impedance 5.6Ω @ 9000Hz Nominal -6dB Minimum
Height 23.75" (603.25mm)
Width 21.41" (543.81mm)
Depth 30.07" (763.78mm)
Shipping Weight 87 lbs (39.5kg)
Driver Type 1" HF & 15" LF
Architect & Engineer Specifications
Loudspeaker shall be Atlas Sound Model AH54-15-BSG or approved equal.
Loudspeaker shall be a 2-way design incorporating an environmentresistant housing.
Loudspeaker shall include a 15", horn loaded, cast frame woofer housed
in a 2296 cubic inch (1.3 feet
mounted 1" exit compression driver coupled to a constant directivity high
frequency horn. The three pole (18dB/octave) dividing network crossover
frequency shall be 1.4kHz. 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 50˚ horizontal by 40˚ vertical in the 2kHz octave band.
Rated power shall be 250 watts based on EIA Standard RS-426B*
Enclosure shall be UV-resistant, steel reinforced, low pressure injection
molded fiberglass and shall include a 3 stage multiple mesh filter system
for weather and rodent resistance:
A. Large 20-gauge perforated aluminum screen on front mouth
assembly.
B. 100 x 100 weave stainless steel mesh between HF horn and HF driver.
C. 100 x 100 weave stainless steel mesh over 15" woofer.
Sensitivity shall be 104dB SPL (75Hz to 17kHz
at a distance of one meter on axis with a one watt input.
Overall frequency response shall be 75Hz to 17kHz ( ±5dB).
The loudspeaker shall include a stamped and formed, 12-gauge stainless
steel mounting bracket assembly for surface mounting and three M8
drop forged eyebolts for suspension mounting.
The input section located on the bottom rear of the loudspeaker shall
include a parallel wired 4 pole terminal block connector (1+ & 1- to input,
2+ & 2- provided as a through connection)
Nominal impedance shall be 8Ω.
Dimensions shall be: Height: 23.75" (603.25mm)
3
) enclosure and an integral, concentrically
1
⁄3 octave bands) measured
Width: 21.41" (543.81mm)
Depth: 30.07" (763.78mm)
Weight: 87 lbs (39.5kg)
©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. ATS004764 RevA 11/13
21.41"
(21.41)
(543.81mm)
28.75"
28.75
(730.25mm)
* EIA test spectrum is applied for eight hours.
(This procedure provides a rigorous test of both thermal and
mechanical failure modes.)
20.07"
30.07
(763.78mm)
14.63"
14.63
(371.6mm)
23.75"
23.75
(603.25mm)
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
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AH-54-15-BSG Vertical Polars (Normalized to Zero on Axis) (-6dB)
AH-54-15-BSG Frequency Response
SPL in dB
Ohms
Frequency (Hz)
AH-54-15-BSG Impedance
©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. ATS004764 RevA 11/13
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
Frequency (Hz) Octave Smoothing = 30.0%
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Beamwidth (Degrees)
AH-54-15-BSG Horizontal Beamwidth (-6 dB)
Frequency (Hz)
AH-54-15-BSG Beamwidth (-6 dB)
Beamwidth (Degrees)
©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. ATS004764 RevA 11/13
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
Frequency (Hz)
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