Altec lansing CF208 User Manual
CF208-4T
CF208-8T
CF208-8TWG
CF208-4T-71
CF208-8T-71
CF208-8TWG-71
8” Ceiling Speakers
SPECIFICATION
Frequency Response
82 – 17,000 Hz +/- 5dB
Low frequency limit (-10 dB)
65 Hz
Power Handling
10 W EIA, 40 W peak
Sensitivity (SPL - 1 W 1m)
98 dB
Maximum Output (Peak SPL)
114 dB
Magnet Weight
0.63 lb (0.29 kg)
Impedance
Nominal - 8 Ohms
Minimal - 8.7 Ohms
DIMENSIONS
CF208-4T/CF208-4T-71
Height: 3.31 in (73 mm)
Diameter: 8.07 in (205 mm)
CF208-8T/CF208-8T-71
Height: 3.31 in (73 mm)
Diameter: 8.07 in (205 mm)
CF208-8TWG/CF208-8TWG-71
Height: 3.39 in (88.5 mm)
Diameter: 12.87 in (327 mm)
Net Weight
CF208-4T
3 lbs 8 oz (1.6 kg)
CF208-8T
3 lbs 8 oz (1.6 kg)
CF208-8TWG
4 lbs 12 oz (2.2 kg)
CF208-4T-71
3 lbs 12 oz (1.7 kg)
CF208-8T-71
3 lbs 12 oz (1.7 kg)
CF208-8TWG-71
5 lbs (2.3 kg)
SHIPPING Weight
CF208-4T
3 lbs 15 oz (1.8 kg)
CF208-8T
4 lbs 3 oz (1.9 kg)
CF208-8TWG
5 lbs 15 oz (2.7 kg)
CF208-4T-71
4 lbs 5 oz (2.0 kg)
CF208-8T-71
4 lbs 5 oz (2.0 kg)
CF208-8TWG-71
6 lbs 5 oz (2.9 kg)
Transformer
CF208-4T
4 Watt 25 V/70 V each with taps
@ 4 W, 2 W, 1 W and 0.5 W
CF208-8T
8 Watt 25 V/70 V each with taps
@ 8 W, 4 W, 2 W and 1.0 W
CF208-8TWG
8 Watt 25 V/70 V each with taps
@ 8 W, 4 W, 2 W and 1.0 W
CF208-4T-71
4 Watt 70 V/100 V with taps @ Z
4 W, 2 W, 1 W AND 0.5 W
CF208-8T-71/CF208-8TWG-71
8 Watt 70 V/100 V with taps @
8 W, 4 W, 2 W and 1 W
CF208 Series
GENERAL PRODUCT DESCRIPTION
The Altec Lansing Professional CF208 series is the result of
dedicated research into professional applications of speech
intelligibility and high fidelity music reproduction. The CF208
family is an excellent choice for ceiling applications in
educational facilities, office buildings, commercial facilities and
shopping malls. The moisture resistant 8 inch / 200 mm speaker
also has a corrosion-resistant frame for rust prevention. To aid
in the dispersion of higher frequencies, the loudspeaker
employs an acoustically isolated free-edge cone. The optional
transformers (4 and 8 Watts) feature a low < 1.0 dB insertion
loss. Our international versions feature a < 0.6 dB insertion loss
4 W and 8 W 70 V/100 V tranformer. For convenience, the WG
version features a factory-installed round white metal grille and
8 Watt line transformer.
FEATURES – THE ALTEC LANSING DIFFERENCE
• Superior entry level 8 inch/ 200 mm loudspeaker
• 10 W EIA / 40 W peak power handling
• Corrosion-resistant speaker frame
• Special moisture resistant cone material
• 4 W or 8 W 25 V / 70 V factory-mounted < 1 db insertion
loss transformers
• International versions with factory-mounted 70 V/100 V
transformer
• The “WG” version features a factory-installed
corrosion-resistant white round metal grille
P ROFESSIONAl
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 CF208
series with an 8 inch (200 mm) full-range speaker, acoustically
isolated free-edge high frequency cone and corrosion-resistant
speaker frame. The speaker shall have a power rating of 10 W
EIA / 40 W peak. The frequency response shall be 82 to 17,000
Hz +/- 5 dB with a sensitivity of 98 dB @ 1 W 1 m. All
transformers shall have a low < 1.0 dB insertion loss and 25 V /
70 V taps. The model numbers shall be Altec Lansing
Professional CF208-4T/CF208-4T-71 with a 4 Watt 25 V/70 V
transformer, a CF208-8T/CF208-8T-71 with an 8 Watt 25 V/70 V
transformer, and a CF208-8TWG/CF208-8TWG-71 with a 8 Watt
25 V/70 V transformer and factory assembled corrosion-resistant
round white metal grille.E
ENCLOSURES AND BAFFLES
The CF208-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 ft
3
(0.028
m
3
) 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 CD208
Series will also fit on standard industry ceiling speaker
hardware.
MOUNTING DIMENSIONS
A
B
AB
CF208-4T/
CF208-4T-71 8.07 in (205 mm) 3.31 in (84 mm)
CF208-8T/
CF208-8T-71 8.07 in (205 mm) 3.31 in (84 mm)
CF208-8TWG/
CF208-8TWG-71 12.87 in (327 mm) 3.39 in (86 mm)
Impedance
Q & Directivity Index
Frequency Response (1 W 1 m on-axis)
Beamwidth
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