Altec Lansing Speaker CD308 16T User Manual

CD308 Series  
8” Ceiling Speakers  
CD308-8A  
CD308-4T  
CD308-8T  
CD308-16T  
PROFE S S IONA l  
FEATURES – THE ALTEC LANSING DIFFERENCE  
• Premium 8 inch / 200 mm Duplex® design  
• Point-source design maximizes speech intelligibility  
• 16 W EIA / 64 W peak power handling  
• Available with three factory-mounted 70 V / 100 V  
transformers  
• All transformers have a low < .6dB insertion loss  
• Corrosion resistant speaker frame  
• Special moisture resistant speaker cone  
GENERAL PRODUCT DESCRIPTION  
The Altec Lansing Professional CD308 series is a premium-grade  
Duplex® component designed to faithfully reproduce music  
program and the human voice. The CD308 family is an excellent  
choice for meeting spaces, under-balcony applications, A/V  
presentation facilities, shops & restaurants and other high quality  
general paging applications. The loudspeaker consists of an  
8 inch / 200 mm special moisture resistant cone woofer and  
broad dispersion cone tweeter with heat resistant voice coils.  
The speaker frame has been treated for rust prevention. A 3,000  
Hz first-order crossover provides smooth high frequency  
transitions. The double magnet design allows physical, electrical,  
and magnetic isolation. The optional 70 V/100 V transformers (4,  
8, and 16 Watts) feature a low < 0.6 dB insertion loss.  
SPECIFICATIONS  
Frequency Response  
78 – 20,000 Hz +/- 5 dB  
Low frequency limit (-10 dB)  
63 Hz  
NET WEIGHT  
CD308-8A  
2 lbs 7 oz (1.1 kg)  
CD308-4T  
CD308-8T  
4 lbs 1 oz (1.8 kg)  
CD308-16T  
4 lbs 10 oz (2.1 kg)  
3 lbs 13 oz (1.7 kg)  
Power Handling  
16 W EIA, 64 W peak  
Sensitivity (SPL - 1 W 1 m)  
97 dB  
Maximum Output (Peak SPL)  
115 dB  
SHIPPING WEIGHT  
CD308-8A  
2 lbs 6 oz (1.4 kg)  
CD308-4T  
CD308-8T  
4 lbs 13 oz (2.2 kg)  
CD308-16T  
5 lbs 7 oz (2.5 kg)  
4 lbs 9 oz (2.1 kg)  
Magnet Weight  
0.63 lb (0.29 Kg)  
Impedance  
TRANSFORMER  
CD308-4T  
Nominal - 8 Ohms  
Minimal - 7.3 Ohms  
Crossover  
4 W 70 V/100 V transformer  
with 70 V taps @ 4 W, 2 W, 1 W and 0.5 W  
CD308-8T  
3,000 Hz  
8 W 70 V/100 V transformer  
with 70 V taps @ 8W, 4W, 2W and 1.0W  
DIMENSIONS  
CD308-16T  
CD308-8A  
Height: 3.11 in (79.6 mm)  
Diameter: 8.07 in (205 mm)  
CD308-4T  
16 W 70 V/100 V transformer  
with 70 V taps @ 16W, 8W, 4W and 2.0W  
CD308-8T  
Height: 3.68 in (94.1 mm)  
Diameter: 8.07 in (205 mm)  
CD308-16T  
Height: 3.68 in (94.1 mm)  
Diameter: 8.07 in (205 mm)  
Height: 4.11 in (104.1 mm)  
Diameter: 8.07 in (205 mm)  
1000 W. Wilshire Blvd., Suite 362 • Oklahoma City, Oklahoma 73116 • Phone: 1-405-848-3108 • Fax: 1-405-848-3217 • www.altecpro.com  
 
One Octave Polar Response Charts  
6 dB/Division  
250 Hz  
1 kHz  
4 kHz  
500 Hz  
2 kHz  
8 kHz  
As we are continually striving to improve Altec Lansing products, specifications are subject to change without notice.  
 
TRANSFORMER CHART  
CD308  
Premium 4 W  
Transformer  
(T504-71)  
Premium 8 W  
Premium 16 W 70.7 V  
100 V  
Primary Tap  
Color Code  
Transformer  
(T508-71)  
Primary  
Transformer  
(T516-71)  
Primary  
Primary Tap  
Color Code  
Primary  
4.0 W  
2.0 W  
1.0 W  
0.5 W  
8.0 W  
4.0 W  
2.0 W  
1.0 W  
16.0 W  
8.0 W  
4.0 W  
2.0 W  
Brown  
Red  
Red  
Orange  
Yellow  
N/A  
Orange  
Yellow  
Primary Common  
Black  
WIRING DIAGRAM  
YELLOW  
1.0 dB  
ORANGE  
0.5 dB  
RED  
+
-
BROWN  
COMMON  
BLACK/WHITE  
BLACK LEAD  
8  
COMMON  
PROFESS IONA 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: [email protected]  
CD308-SS REV06  
 

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