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
A
B
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
