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C803A Series
8 " Coaxial Loudspeaker Available With Transformer
Features
• Industry Standard 8" (203mm) Coaxial, 16 Watt Loudspeaker
• Offers Proven Performance with Wide Frequency Response
• Post-Mounted Tweeter Adds Strength and a More At trac tive
Appearance
• Ideal for Multi-Purpose Commercial, Industrial, and Institutional Use
Applications
Use Atlas Sound 8" (203mm) diameter, multi-purpose, coaxial loudspeaker
Model C803A for voice trans mis sion, music and signal re pro duc tion in
high-quality commercial, in dus tri al, and in sti tu tion al ap plica tions.
General Description
Model C803A. High-quality, 16 Watt model C803A utilizes a post-mounted
tweeter which adds strength to the assembly and provides an attractive
ap pear ance. This coaxial loud speak er features a 70Hz–15.5kHz, (±5dB)
frequency response and a broad, uniform dispersion pattern of 120˚.
Such provisions allow for highly in tel ligible sound reproduction and better
C803A
distribution for high-quality sound systems. The C803A combines a full-size 8"
(203mm) diameter low-frequen cy re producer and a 3" (76mm) high-frequency
re pro ducer. The two sections are coupled via a built-in crossover network.
The woofer has a 10oz. (260g) ceramic magnet; the tweeter has a 2.35oz.
(67g) ceramic magnet and the unit has a peak sensitivity of 98dB (at 1W/1M).
The loudspeaker is available with six different factory-in stalled line-matching trans form ers to meet a variety of project re quire ments. Model C803A
mounts a wide variety of Atlas Sound baffles and enclosures, with the
optimum sealed enclosure size being .36 ft
3
.
Specifications
Speaker Size LF: 8" (203mm), HF: 3" (76mm)
Power Rating 16 Watts RMS
Sensitivity 98dB (peak)
Impedance 8Ω Nominal
Frequency Response 70Hz–15.5kHz (±5dB)
Crossover Frequency 2,800Hz, First Order
Dispersion 120°
Voice Coil Diameter 1" (25mm)
Voice Coil Material Copper
Voice Coil Former Material Black Anodized Aluminum
Weight 2.4 lbs. (1060g)
Diameter Less Transfomer 81⁄8" (206mm)
Depth Less Transfomer 27⁄8" (73mm)
Mounting Dimensions 75⁄8" (194mm) B.C.
©2012 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. ATS004084 RevA 7/12
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
1/5
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Transfomer Specifications
C803AT47
Includes Transfomer HT-47
Primary Voltage 70.7V
Transfomer Frequency Response 60Hz – 12kHz, (±1dB)
Primary Taps .5, 1, 2, & 4 Watts
Secondary Impedance 8Ω
Insertion Loss 1.0dB
Core Size 5⁄8" x 5⁄8" (16 x 16mm)
Power Rating 4 Watts
C803AT167
Includes Transfomer HT167
Primary Voltage 70.7V
Transfomer Frequency Response 40Hz – 15kHz
Primary Taps 4, 8, 16 Watts
Secondary Impedance 8Ω
Insertion Loss .6dB
Core Size 1" x 1"
Power Rating 16 Watts
C803AT70
Includes Transfomer LT-7 0
Primary Voltage 70.7V
Transfomer Frequency Response 100Hz – 10kHz, (±1.5dB)
Primary Taps .5, 1, 2, & 5 Watts
Secondary Impedance 8Ω
Insertion Loss 1.5dB
Core Size 1⁄2" x 5⁄8" (13 x 16mm)
Power Rating 5 Watts
C803AT87
Includes Transfomer HT-87
Primary Voltage 70.7V
Transfomer Frequency Response 50Hz – 15kHz, (±1dB)
Primary Taps 1, 2, 4, & 8 Watts
Secondary Impedance 4 & 8Ω
Insertion Loss 0.6dB
Core Size 1" x
Power Rating 8 Watts
3
⁄4" (25 x 19mm)
Architect and Engineer Specifications
Unit shall be Atlas Sound 8" diameter loudspeaker Model C803A or
loudspeak er /trans form er com bi na tion Model ______ (uti liz ing Atlas
Sound line-match ing trans form er Model _____). The low-fre quen cy
re producer cone shall be a full 8" (203mm) in diameter and the high
frequency reproducer cone shall be 3" (76mm) in diameter. The woofer
shall have a 10oz. (260g) ceramic magnet; the tweeter shall have a
2.35oz. (67g) ceramic magnet. The two reproducer sections shall be
coupled through a built-in crossover network.
The crossover frequency shall be at 2800Hz. Frequency response range
shall be 70Hz – 15.5kHz, (±5dB). Sen si tiv i ty shall be 98dB at 1 Watt/
1 meter. Voice coil im ped ance shall be 8Ω. Low frequency voice coil
diameter shall be 1" (25mm) and operate in a magnet field of at least
10,600 gauss. Transformer primary voltage shall be _____ (25V, 70.7V,
25V/70.7V) with a fre quen cy re sponse range of _______ and power taps
at ____ watts. Insertion loss shall not exceed ____dB. The maximum
depth of the loud speak er shall not exceed 2
7
⁄8" (73mm).
C803AT72
Includes Transfomer LT-7 2
Primary Voltage 25V/70.7V
Transfomer Frequency Response 100Hz – 10kHz, (±1.5dB)
Primary Taps .5, 1, 2, & 4 Watts
Secondary Impedance 8Ω
Insertion Loss 1.5dB
Core Size 1⁄2" x 5⁄8" (13 x 16mm)
Power Rating 4 Watts
©2012 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. ATS004084 RevA 7/12
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
2/5
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C803A Polars (Normalized to Zero on Axis) (-6dB)
C803A Frequency Response
SPL in dB
©2012 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. ATS004084 RevA 7/12
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
Frequency (Hz)
AtlasSound.com
3/5
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C803A Frequency Response Overlay
SPL in dB
Frequency (Hz)
©2012 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. ATS004084 RevA 7/12
C803A Harmonic Distortion
Magnitude (dB)
Frequency (Hz)
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
4/5
Page 5
Ohms
C803A Impedance
Frequency (Hz) Octave Smoothing = 30.0%
©2012 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. ATS004084 RevA 7/12
1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
AtlasSound.com
5/5
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