Specifications subject to change without notice
© 2001 Atlas Sound LP
Printed in U.S.A.
000501
SL1-1037
57
ONE
1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: (800) 876-3333 / FAX (800) 765-3435
MODEL COMBINATIONS / TRANSFORMER SPECIFICATIONS
SPKR. / XFMR.
PRIMARY
COMBINATIONS XFMR. PRIMARY
XFMR. FREQUENCY
TAPS
SECONDARY INSERTION
CORE
POWER
AVAILABLE
VOLTAGE
RESPONSE
(WATTS)
IMPEDANCE LOSS (MAX)
SIZE
RATING
C803AT25
LT-25
25 V
100 Hz - 10 kHz, ±1.5dB
.5, 1, 2 & 5
8 Ohms
1.5dB
1
⁄
2
" x
5
⁄
8
" (16 x 16mm)
5 Watts
C803AT47
HT-47
70.7 V
60 Hz - 12 kHz, ±1.0dB
.5, 1, 2 & 4
8 Ohms
1.0dB
5
⁄
8
" x
5
⁄
8
" (16 x 16mm)
4 Watts
C803AT70
LT-70
70.7 V
100 Hz - 10 kHz, ±1.5dB
.5, 1, 2 & 5
8 Ohms
1.5dB
1
⁄
2
" x
5
⁄
8
" (16 x 16mm)
5 Watts
C803AT72
LT-72
25/70 V
100 Hz - 10 kHz, ±1.5dB
.5, 1, 2 & 4
8 Ohms
1.5dB
1
⁄
2
" x
5
⁄
8
" (16 x 16mm)
4 Watts
C803AT82
HT-82
25 V
50 Hz - 15 kHz, ±1.0dB
1, 2, 4, 8
4 & 8 Ohms
0.6dB
1" x
3
⁄
4
" (25 x 19 mm)
8 Watts
C803AT87
HT-87
70.7 V
50 Hz - 15 kHz, ±1.0dB
1, 2, 4, 8
4 & 8 Ohms
0.6dB
1" x
3
⁄
4
" (25 x 19mm)
8 Watts
SPECIFICATIONS
Speaker Size:
LF: 8" (203mm), HF: 3" (76mm)
Power Rating:
16 Watts RMS
Sensitivity (SPL at 1W/1M):
98dB (peak), 95dB (avg)
Impedance:
Nominal, 8 ohms
Frequency Response:
70 Hz - 15.5 kHz (±5dB)
Crossover Frequency:
2,800 Hz, First Order
Dispersion:
120°
Mounting Dimensions:
7
5
⁄
8
" (194mm) B.C.
Cone Material:
Treated Paper
Surround Material & Damping: Self Edge with Dampener
Flux Density:
10,600 Gauss, 1.06 Tesla
Magnet Weight:
Nominal, 10 oz. (260g)
Basket Material:
20 ga. Stamped Steel
Voice Coil Diameter:
1" (25mm)
Voice Coil Material:
Copper
Voice Coil Former Material:
Black Anodized Aluminum
Voice Coil Winding Width:
.265 (7mm)
Top Plate Thickness:
.239 (6mm)
Weight:
2.4 lbs. (1060g)
Diameter & Depth Less Xfmr: 8
1
⁄
8
" (206mm) Dia. & 2
7
⁄
8
" (73mm) Deep
For additional information on Atlas Sound transformer models, refer to technical literature #SL1-1369.
FEATURES
• Industry Standard 8" (203mm) Coaxial, 16-Watt, Loudspeaker
• Offers Proven Performance with Wide Frequency Response
• Post-Mounted Tweeter Adds Strength and a More Attractive
Appearance
• Ideal for Multi-Purpose Commercial, Industrial, and Institutional Use
APPLICATIONS
Use Atlas Sound 8" (203mm) dia., multi-purpose, coaxial loudspeaker
Model C803A for voice transmission, music and signal reproduction in
high-quality commercial, industrial and institutional applications.
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 appearance. This coaxial loudspeaker features a 70 Hz-
15.5 kHz, ±5dB frequency response and a broad, uniform dispersion
pattern of 120°. Such provisions allow for highly intelligible sound
reproduction and better distribution for high-quality sound systems.
The C803A combines a full-size 8" (203mm) dia. low-frequency repro-
ducer and a 3" (76mm) high-frequency reproducer. The two sections
are coupled via a built-in crossover network. The woofer has a 10 oz.
(260g) ceramic magnet; the tweeter has a 2.35 oz. (67g) ceramic mag-
net and the unit has a peak sensitivity of 98dB (at 1 watt, 1 meter).
The loudspeaker is available with six different factory-installed line-
matching transformers to meet a variety of project requirements (see
chart below). Model C803A mounts a wide variety of Atlas Sound baffles
and enclosures, with the optimum sealed enclosure size being .36 cu. ft.
C803A
(shown with transformer)
THIELE-SMALL PARAMETERS
Pe: 16 Watts
Fs: 105 Hz
Xmax: .05 in.
Resistance: 6.4 ohms
Qts: .513
Qes: .556
Qms: 6.58
BL: 8.9 N/A
Efficiency:
2.9%
Vas: .507 Ft.
3
Sd: 33.1 In.
3
Le@1kHz: .74 mH
Mms: .369 oz
Cms: .039 in./lb.
8" COAXIAL LOUDSPEAKER
AVAILABLE WITH TRANSFORMER
C803A
Series
