Atlas Sound C803A - Manual

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