Altec Lansing CF108-4T Manual de usuario

CF108-4T

CF108-4TWG

CF108-4T-71

CF108-4TWG-71

8” Ceiling Speakers

SPECIFICATION

Frequency Response

82 – 17,000 Hz +/- 5dB

Low frequency limit (-10 dB)

65 Hz

Power Handling

8 W EIA, 32 W peak

Sensitivity (SPL - 1 W 1 m)

98 dB

Maximum Output (Maximum SPL)

113 dB

Magnet Weight

0.63 lb (0.29 kg)

Impedance

Nominal - 8 Ohms

Minimal - 8.7 Ohms

Dimensions

CF108-4T/CF108-4T-71

Height: 3.31 in (87.5 mm)

Diameter: 8.07 in (205 mm)

CF108-4TWG/CF108-4TWG-71

Height: 3.39 in (88.5 mm)

Diameter: 12.87 in (327 mm)

Net Weight

CF108-4T

3 lbs 8 oz (1.6 kg)

CF108-4TWG

4 lbs 12 oz (2.2 kg)

CF108-4T-71

3 lbs 12 oz (1.7 kg)

CF108-4TWG-71

5 lbs (2.3 kg)

SHIPPING Weight:

CF108-4T

3 lbs 15 oz (1.8 kg)

CF108-4TWG

5 lbs 15 oz (2.7 kg)

CF108-4T-71

4 lbs 5 oz (2.0 kg)

CF108-4TWG-71

6 lbs 5 oz (2.9 kg)

Transformer:

CF108-4T/CF108-4TWG

4 Watt 25 V/70 V with taps @

4 W, 2 W, 1 W and 0.5 W

CF108-4T-71/CF108-4TWG-71

4 Watt 70 V/100 V with taps @

4 W, 2 W, 1 W and 0.5 W

FEATURES – THE ALTEC LANSING DIFFERENCE

• Superior entry level 8 inch/ 200 mm loudspeaker

• 8 W EIA / 32 W peak power handling

• Corrosion-resistant frame

• Special moisture resistant cone material

• 4 W 25 V / 70 V factory-mounted < 1 dB insertion loss

transformer

• International versions with factory-mounted 70 V/100 V

transformers

• The “WG” model comes with factory-installed

corrosion-resistant round white metal grille

CF108 Series

GENERAL PRODUCT DESCRIPTION

The Altec Lansing Professional CF108 series is the result

of significant research into the applications of speech

intelligibility and high fidelity music reproduction. The

CF108 speakers are an excellent choice for standard ceiling

height applications in educational facilities, shopping malls,

restaurants, office buildings and commercial facilities. The

moisture resistant 8 inch / 200 mm speaker features a

corrosion-resistant speaker frame. To aid in the dispersion

of higher frequencies, the loudspeaker employs an

acoustically isolated free-edge HF cone. The 4 watt

25 V / 70 V transformer has a low <1 .0 dB insertion loss.

Our international versions feature a < 0.6 dB insertion loss

4 W 70 V/100 V transformer. For convenience, the WG

version features a factory-installed corrosion-resistant grille.

PROFESSIONAl

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 CF108-4T

/ CF108-4TWG with an 8 inch (200 mm) full-range speaker with

acoustically isolated free-edge HF cone and corrosion-resistant

frame. The speaker shall have a power rating of 8 W EIA / 32

W peak. The frequency response shall be 82 to 17,000 Hz +/-

5dB with a sensitivity of 98 dB @ 1 W 1 m. The model numbers

shall be Altec Lansing Professional CF108-4T with a 4 Watt 25

V/70 V factory-installed transformer, and a CF108-4TWG with

a 4 Watt 25 V/70 V transformer and factory-installed corrosion

resistant round, white metal grille. All transformers shall have

a low < 1.0 dB insertion loss.

ENCLOSURES AND BAFFLES

The CF108-series ceiling 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.

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 CF108

Series will also fit on standard industry ceiling speaker

hardware.

MOUNTING DIMENSIONS

Frequency Response (1 W 1 m on-axis)

Q & Directivity Index

Beamwidth

Impedance

CF108-4T/

CF108-4T71 8.07 in (205 mm) 3.31 in (84 mm)

CF108-4TWG/

CF108-4T71WG 12.87 in (327 mm) 3.39 in (86 mm)

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

250 Hz 500 Hz

1 kHz 2 kHz

4 kHz 8 kHz

One Octave Polar Response Charts

6 dB/Division

CF108-SS REV05

TRANSFORMER CHART

WIRING DIAGRAM (CF108-4T/CF108-4TWG)

CF108

VIOLET WHITE LEAD

GRAY LEAD

COMMON

8 Ω

BLUE

GREEN

YELLOW

ORANGE

RED

BROWN

COMMON

WIRING DIAGRAM (CF108-4T 71/CF108-4TWG-71)

YELLOW

0.5 dB

1.0 dB

8 Ω

ORANGE

RED

BROWN

COMMON

BLACK/WHITE

BLACK LEAD

COMMON

Utility 4 W Utility 8 W 25 V 70 V 100 V

Transformer Transformer Primary Tap Primary Tap Primary Tap

(T404-27) (T408-27) Color Code Color Code Color Code

Primary Taps Primary Taps

4.0 W 8.0 W Brown Yellow Green

2.0 W 4.0 W Red Green Blue

1.0 W 2.0 W Orange Blue Violet

0.5 W 1.0 W Yellow Violet N/A

Primary Common Black

CF108-71

Premium 8 W(T508-71) /

4 W (T504-71) Transformer

Primary Tap Color Code

Black

Brown

Red

Orange

Yellow

70 V Primary Tap

4 W(T504-71)

Common

4.0 W

2.0 W

1.0 W

0.5 W

100 V Primary Tap

4 W(T504-71)

Common

N/A

4.0 W

2.0 W

1.0 W

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: [email protected]

PROFESSIONAl

TRANSFORMER CHART

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