Atlas AH94-15-BSG User manual

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1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
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©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. ATS004763 RevA 11/13
Features
• Efficiency rating of 102.5dB (1 W/1 M)
• 250 watts power handling
• Maximum output of 126.5dB (Rated Power @ 1 M)
• Constant directivity design offers controlled coverage of
90˚ H by 40˚V (2kHz octave band)
• Excellent low frequency response provides bass you can feel
• Driver complement includes a 15" cast frame woofer with a
concentrically mounted 1" exit compression driver coupled to a
90˚ H x 40˚V HF horn
• Full range frequency response of 75Hz – 14.5kHz (±5dB)
• Easy, weather resistant connection via a 4-pole terminal block
connector
• 8Ωnominal system impedance
• Heavy duty stainless steel mounting bracket (included) allows for
easy installation to almost any flat surface
• Three forged eyebolts also included for suspended installation
Applications
Atlas Sound model AH94-15-BSG stadium horn is ideal for shorter
throw and wide coverage 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 AH94-15-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.
Installation
A heavy-duty stainless steel "C" style mounting bracket is included with
the AH94-15-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 aircraft cable. (Use
caution when suspending any object overhead. Refer to the installation
manual for more details).
The AH94-15-BSG includes a 4 pole terminal block, weather resistant
connector on the underside of the device for easy hook-up and daisy
chain wiring to other AH94-15-BSG. If 70.7/100V operation is required,
the optional Atlas Sound AF140 autoformer may be used. NOTE: Due to the
full range operation capabilities of the AH94-15-BSG 70.7/100V operation
is possible, but 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.
AH94-15-BSG
AH94-15-BSG
15" 2-way Stadium Horn System 90° x 40°
AH94-15-BSG

AtlasSound.com 2/4
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: [phone]
FAX [phone]
©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. ATS004763 RevA 11/13
Technical Specifications
Power Handling: 250 watts (45V) RMS
Sensitivity (1W / 1M): 102.5dB SPL
(75Hz – 14.5kHz 1⁄3octave bands)
Frequency Response: 75Hz – 14.5kHz (±5dB)
Dispersion: 90˚ x 40˚
Nominal Impedance: 8Ω
Minimum Impedance: 5.6Ω@ 9000Hz Nominal -6dB
Height: 24.91" (632.71mm)
Width: 29.57" (751.08mm)
Depth: 29.65" (753.11mm)
Shipping Weight: 100 lbs (45.4kg)
Driver Type: 1" HF & 15" LF
Architect & Engineer Specifications
Loudspeaker shall be Atlas Sound Model AH94-15-BSG or approved
equal.
Loudspeaker shall be a 2-way design incorporating an environment-
resistant housing.
Loudspeaker shall include a 15", horn loaded, cast frame woofer housed
in a 2296 in3(1.3 ft3) enclosure and an integral, concentrically 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 90˚ 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 102.5dB SPL (75Hz to 17kHz 1⁄3octave bands)
measured at a distance of 1 meter on axis with a 1 watt input.
Overall frequency response shall be 75Hz – 14.5kHz (±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 4 pole terminal block connector.
Nominal impedance shall be 8Ω.
Dimensions shall be: Height 24.91" (632.71mm)
Width 29.57" (751.08mm)
Depth 29.65" (753.11mm)
Weight 100 lbs (45.4kg)
*EIA test spectrum is applied for eight hours.
(This procedure provides a rigorous test of both thermal and
mechanical failure modes.)
14.21
29.65
28.33
29.57
22.58
24.91
29.65"
(753.11mm)
14.21"
(360.93mm)
28.33"
(719.58mm)
24.91"
(632.71mm)
22.58"
(573.53mm)
29.57"
(751.08mm)

AtlasSound.com 3/4
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: [phone]
FAX [phone]
©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. ATS004763 RevA 11/13
AH94-15-BSG Horizontal Beamwidth (-6dB)
AH94-15-BSG Vertical Beamwidth (-6dB)
AH94-15-BSG Frequency Resonse

AtlasSound.com 4/4
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: [phone]
FAX [phone]
©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. ATS004763 RevA 11/13
AH94-15-BSG Impedance (ohms) vs. Frequency
AH94-15-BSG Horizontal Polars (Normalized to Zero on Axis) (-6dB)
AH94-15-BSG Vertical Polars (Normalized to Zero on Axis) (-6dB)