User manual ALTEC LANSING 1902A SIGNAL PROCESSING MANAUL

[. . . ] The CF208 family is an excellent choice for ceiling applications in educational facilities, office buildings, commercial facilities and shopping malls. [. . . ] 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. 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 CF208-4T CF208-8T CF208-8TWG CF208-4T-71 CF208-8T-71 CF208-8TWG-71 1000 W. All unused taps must be insulated with suitable insulation. 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. Frequency Response (1 W 1 m on-axis) Beamwidth Impedance Q & Directivity Index MOUNTING DIMENSIONS A CF208-4T/ CF208-4T-71 CF208-8T/ CF208-8T-71 CF208-8TWG/ CF208-8TWG-71 8. 07 in (205 mm) 8. 07 in (205 mm) 12. 87 in (327 mm) B 3. 31 in (84 mm) 3. 31 in (84 mm) 3. 39 in (86 mm) A B 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 CF208 Utility 4 W Transformer (T404-27) Primary Taps 4. 0 W 2. 0 W 1. 0 W 0. 5 W Utility 8 W Transformer (T408-27) Primary Taps 8. 0 W 4. 0 W 2. 0 W 1. 0 W 25 V Primary Tap Color Code Brown Red Orange Yellow 70 V Primary Tap Color Code Yellow Green Blue Violet Black 100 V Primary Tap Color Code Green Blue Violet N/A Primary Common WIRING DIAGRAM (CF208-4T/CF208-8T/CF-208-8TWG) VIOLET BLUE GREEN YELLOW ORANGE RED BROWN COMMON COMMON GRAY LEAD WHITE LEAD + 8 - TRANSFORMER CHART CF208-71 70 V Primary Tap 70 V Primary Tap Premium 8 W(T508-71) / 4 W (T504-71) Transformer 4 W(T504-71) 8 W(T508-71) Primary Tap Color Code Black Brown Red Orange Yellow Common 4. 0 W 2. 0 W 1. 0 W 0. 5 W Common 8. 0 W 4. 0 W 2. 0 W 1. 0 W 100 V Primary Tap 4 W(T504-71) Common N/A 4. 0 W 2. 0 W 1. 0 W 100 V Primary Tap 8 W(T508-71) Common N/A 8. 0 W 4. 0 W 2. 0 W WIRING DIAGRAM (CF208-4T-71/CF208-8T-71/CF-208-8TWG-71) YELLOW 1. 0 dB ORANGE RED BROWN COMMON COMMON 0. 5 dB + 8 BLACK/WHITE BLACK LEAD - PROFE S S IONA l © 2002 Altec Lansing Professional 1000 W. [. . . ] The CD208 Series will also fit on standard industry ceiling speaker hardware. Frequency Response (1 W 1 m on-axis) Beamwidth Impedance Q & Directivity Index MOUNTING DIMENSIONS A CF208-4T/ CF208-4T-71 CF208-8T/ CF208-8T-71 CF208-8TWG/ CF208-8TWG-71 8. 07 in (205 mm) 8. 07 in (205 mm) 12. 87 in (327 mm) B 3. 31 in (84 mm) 3. 31 in (84 mm) 3. 39 in (86 mm) A B 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 CF208 Utility 4 W Transformer (T404-27) Primary Taps 4. 0 W 2. 0 W 1. 0 W 0. 5 W Utility 8 W Transformer (T408-27) Primary Taps 8. 0 W 4. 0 W 2. 0 W 1. 0 W 25 V Primary Tap Color Code Brown Red Orange Yellow 70 V Primary Tap Color Code Yellow Green Blue Violet Black 100 V Primary Tap Color Code Green Blue Violet N/A Primary Common WIRING DIAGRAM (CF208-4T/CF208-8T/CF-208-8TWG) VIOLET BLUE GREEN YELLOW ORANGE RED BROWN COMMON COMMON GRAY LEAD WHITE LEAD + 8 - TRANSFORMER CHART CF208-71 70 V Primary Tap 70 V Primary Tap Premium 8 W(T508-71) / 4 W (T504-71) Transformer 4 W(T504-71) 8 W(T508-71) Primary Tap Color Code Black Brown Red Orange Yellow Common 4. 0 W 2. 0 W 1. 0 W 0. 5 W Common 8. 0 W 4. 0 W 2. 0 W 1. 0 W 100 V Primary Tap 4 W(T504-71) Common N/A 4. 0 W 2. 0 W 1. 0 W 100 V Primary Tap 8 W(T508-71) Common N/A 8. 0 W 4. 0 W 2. 0 W WIRING DIAGRAM (CF208-4T-71/CF208-8T-71/CF-208-8TWG-71) YELLOW 1. 0 dB ORANGE RED BROWN COMMON COMMON 0. 5 dB + 8 BLACK/WHITE BLACK LEAD - PROFE S S IONA l © 2002 Altec Lansing Professional 1000 W. 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