Altec Lansing CD408-8T User Manual

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P R O F E S S I O N A L

FEATURES – THE ALTEC LANSING DIFFERENCE

High Fidelity Duplex® 8 inch / 200 mm Premium Loudspeaker

Designed to maximize music program reproduction

High output 32 W EIA / 128 W peak power handling

Point-Sourcedesign for excellent speech intelligibility

Available with four factory-mounted70 V / 100 V transformers

All transformers have a low < .6dB insertion loss

Corrosion-resistantspeaker frame

Special moisture resistant cone material

GENERAL PRODUCT DESCRIPTION

The Altec Lansing Professional CD408 series uses Duplex® technology to maximize the reproduction of high output music program material. The CD408 is an excellent choice for clubs, restaurants, performance and transportation venues and all applications requiring high output and high fidelity performance. The loudspeaker consists of an 8 inch / 200 mm special moisture resistant cone woofer, a broad dispersion cone tweeter with heat resistant voice coils and acorrosion-resistantspeaker frame. A 2,500 Hz first order crossover provides smooth high fidelity transitions. The double magnet design allows physical, electrical, and magnetic isolation. The optional 70 V / 100 V transformers (4, 8, 16, 32 Watts) feature a low < 0.6 dB insertion loss.

CD408 SERIES

8” Ceiling Speakers

CD408-8A

CD408-4T

CD408-8T

CD408-16T

CD408-32T

SPECIFICATIONS

 

CD408-8T

 

CD408-4T

Frequency Response

 

Height: 3.68 in (94.1 mm)

 

4 lbs 9 oz (2.1 kg)

82 – 16,000 Hz +/- 5dB

 

Diameter: 8.07 in (205 mm)

 

CD408-8T

Low frequency limit (-10dB)

 

CD408-16T

 

4 lbs 14 oz (2.2 kg)

66 Hz

 

Height: 4.06 in (104.1 mm)

 

CD408-16T

Power Handling

 

Diameter: 8.07 in (205 mm)

 

5 lbs 7 oz (2.5 kg)

32 W EIA, 128 W peak

 

CD408-32T

 

CD408-32T

Sensitivity (SPL - 1 W 1 m)

 

Height: 4.41 in (113.1 mm)

 

5 lbs 13 oz (2.6 kg)

98 dB

 

Diameter: 8.07 in (205 mm)

 

TRANSFORMER

Maximum Output (Peak SPL)

 

NET WEIGHT

 

119 dB

 

 

CD408-4T

Magnet Weight

 

CD408-8A

 

4 Watt 70 V/100 V transformer

0.62 lb (0.29 Kg)

 

2 lbs 8 oz (1.1 kg)

 

with 70 V taps @ 4 W, 2 W, 1 W

Impedance

 

CD408-4T

 

and 0.5 W

Nominal - 8 Ohms

 

3 lbs 13 oz (1.7 kg)

 

CD408-8T

Minimum - 7.8 Ohms

 

CD408-8T

 

8 Watt 70 V/100 V transformer

Crossover

 

4 lbs 1 oz (1.8 kg)

 

with 70 V taps @ 8 W, 4 W, 2 W

2,500 Hz

 

CD408-16T

 

and 1.0W

DIMENSIONS

 

4 lbs 10 oz (2.1 Kg)

 

CD408-16T

 

CD408-32T

 

16 Watt 70 V/100 V transformer

CD408-8A

 

4 lbs 14 oz (2.2 kg)

 

with 70 V taps @ 16 W, 8 W, 4 W

Height: 3.11 in (79.6 mm)

 

SHIPPING WEIGHT

 

and 2.0 W

Diameter: 8.07 in (205 mm)

 

 

CD408-32T

CD408-4T

 

CD408-8A

 

32 Watt 70 V/100 V transformer

Height: 3.68 in (94.1 mm)

 

3 lbs 4 oz (1.4 kg)

 

with 70 V taps @ 32 W, 16 W, 8 W

Diameter: 8.07 in (205 mm)

 

 

 

and 4.0 W

1000 W. Wilshire Blvd., Suite 362 • Oklahoma City, Oklahoma 73116 • Phone: 1-405-848-3108• Fax:1-405-848-3217• www.altecpro.com

ARCHITECTS & ENGINEERS SPECIFICATION

The loudspeaker shall be an Altec Lansing Professional CD408 series Duplex® with an 8 inch (200 mm) diameter moisture resistant woofer and a broad dispersion tweeter with heat resistant voice coils. The speaker shall have a power rating of 32 W EIA / 128 W peak, a double magnet assembly andcorrosion-resistantframe. The frequency response shall be 82 to 16,000 Hz +/- 5 dB with a sensitivity of 98 dB @ 1 W 1 m. All transformers shall have a low < 0.6 dB insertion loss. The model numbers shall be Altec Lansing ProfessionalCD408-8Afor 8 Ohms impedance,CD408-4Twith a 4 Watt 70 V/100 V

transformer, CD408-8Twith an 8 Watt 70 V/100 V transformer,CD408-16Twith a 16 Watt 70 V/100 V transformer, and a CD40832T with a 32 Watt 70 V/100 V transformer.

ENCLOSURES AND BAFFLES

The CD408-seriesceiling speakers will fit on standard 8 inch (200 mm) baffles, enclosures and back boxes.

All measurements were made in a standard AES baffle

for a 12 inch driver. The driver was housed in a 1.0 ft3 (0.028 m3) enclosure.

Frequency Response (1 W 1 m on-axis)

Impedance

MOUNTING DIMENSIONS

Please note that larger volume enclosures will result in altered low frequency performance.

SAFETY CONSIDERATION

1.Appropriate connectors with suitable ratings must be used to make all installation connections.

2.All unused taps must be insulated with suitable insulation.

3.Transformers and speaker combinations must be supplied by a suitable amplifier incorporating ungrounded outputs only and reinforced insulation

(as per IEC60065) from output to mains.

ACCESSORIES

Altec Lansing recommends use of our 8 inch (200 mm) round and square metal enclosures, grilles and tile bridge. The CD408 Series will also fit on standard industry ceiling speaker hardware.

Beamwidth

Q & Directivity index

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CD408-8A

8.07 in (205 mm)

3.11 in (79 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CD408-4T

8.07 in (205 mm)

3.68 in (94 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CD408-8T

8.07 in (205 mm)

3.68 in (94 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CD408-16T

8.07 in (205 mm)

4.06 in (103 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CD408-32T

8.07 in (205 mm)

4.41 in (112 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

One Octave Polar Response Charts 6 dB/Division

 

250 Hz

 

500 Hz

 

 

 

 

 

1 kHz

 

2 kHz

 

 

 

 

 

 

 

 

 

 

 

4 kHz

 

8 kHz

 

 

 

 

As we are continually striving to improve Altec Lansing products, specifications are subject to change without notice.

TRANSFORMER CHART

CD408

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Premium 4 W

Premium 8 W

 

Premium 16 W

Premium 32 W

70.7 V

100 V

 

 

 

 

Transformer

Transformer

 

Transformer

Transformer

Primary Tap

Primary Tap

 

 

 

 

(T504-71)

(T508-71)

 

(T516-71)

(T532-71)

Color Code

Color Code

 

 

 

 

Primary

Primary

 

Primary

Primary

 

 

 

 

 

 

 

4.0 W

8.0 W

 

16.0 W

32.0 W

Brown

Red

 

 

 

 

 

2.0 W

4.0 W

 

8.0 W

16.0 W

Red

Orange

 

 

 

 

 

1.0 W

2.0 W

 

4.0 W

8.0 W

Orange

Yellow

 

 

 

 

 

0.5 W

1.0 W

 

2.0 W

4.0 W

Yellow

N/A

 

 

 

 

 

 

Primary Common

 

 

Black

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WIRING DIAGRAM

 

 

 

 

 

 

 

 

 

 

 

 

 

YELLOW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORANGE

 

1.0 dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RED

 

0.5 dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BROWN

 

 

 

 

 

 

 

+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 Ω

 

 

BLACK/WHITE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMMON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLACK LEAD

 

 

-

 

 

 

 

 

 

 

 

 

COMMON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P R OF E S S I O N A L

© 2002 Altec Lansing Professional

1000 W. Wilshire Blvd., Suite 362

Oklahoma City, Oklahoma 73116

Phone: 1-405-848-3108• Fax:1-405-848-3217

Web: www.altecpro.com • Email: proinfo@alteclansing.com

CD408-SSREV06