User manual ELECTRO-VOICE CO90E

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Manual abstract: user guide ELECTRO-VOICE CO90E

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[. . . ] (Patent #4, 984, 278) Ideal for both indoor and outdoor applications, these drivers are well suited for any installation requiring rugged, reliable performance. PA430 PA430T Constant-Directivity Paging Projector COMMERCIAL Architects' and Engineers' Specifications The loudspeaker(s) shall be an integral driver and constantdirectivity horn utilizing a rugged phenolic diaphragm and high-temperature-rated, 1. 5-inch diameter voice coil. The axial frequency response will extend from 400 to 6, 500 Hz, and the horn shall exhibit a low-frequency cutoff of 350 Hz. Sound pressure level will be 107 dB (1 W/1 m) with a 500 to 5, 000 Hz pink-noise signal applied, and the horn will produce a horizontal beamwidth of 60° and a vertical beamwidth of 40° from 1 kHz to 10 kHz. The loudspeaker(s) shall be capable of handling a 30 watt, 500 to 5, 000 Hz pink-noise signal with a 6 dB crest factor for a period of 8 hours. [. . . ] The loudspeaker(s) shall be capable of handling a 30 watt, 500 to 5, 000 Hz pink-noise signal with a 6 dB crest factor for a period of 8 hours. The horn shall be molded, high-impact acrylic-styrene-acrylonitrile (ASA) capable of satisfactory mechanical performance in the temperature range from -4°C (-40°F) to 71°C (160°F) and not subject to sunlight embrittlement. Other major external speaker parts shall be molded nylon, finished in mesa tan to match the horn. All components shall be resistant to damage from weather, moisture and fungus. A positive-lock swivel bracket shall provide orientation adjustment in all three places. Adjustments are made by loosening one or both of the locking nuts on the mounting hoop. The loudspeaker(s) shall be 22. 6 cm (8. 9 in. ) high, 30. 7 cm (12. 1 in. ) wide and 31. 0 cm (12. 2 in. ) deep - PA430; or 35. 8 cm (14. 1 in. ) deep - PA430T. The loudspeakers shall be the PA430, which has a nominal impedance of 8 ohms and weighs no more than 1. 4 kg (3. 0 lb); and the PA430T, which includes a 100V/70. 7V/25V line-matching transformer, and has a nominal impedance of 8 ohms and weighs no more than 1. 7 kg (3. 8 lb). Specifications: Frequency Response: . . . . . . . . . 400-6, 500 Hz ±5 dB (see Figure 1) Power Handling, 8 Hours, 6 dB Crest Factor: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 watts (500-5, 000 Hz pink noise) Impedance: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The mounting assembly provides three means of adjustment, allowing the horn to be oriented for any coverage pattern desired. Adjustment is accomplished with nuts that require minimal torque to maintain horn position and may be tightened by hand. During installation, after punching out the desired attachments, the base and horn are loosely secured with one screw. This leaves hands free to wire nut the product zip cord and feed wiring together. After tucking wire connections into the electrical box or base, install remaining screws. Low-Frequency Driver Protection For proper system operation, program information should be highpassed at 300 Hz or higher with at least a 6 dB per octave slope filter. This is best accomplished before the power amplifier using a low-level crossover; however, protection of amplifier and paging projector may alternately be accomplished using a capacitor in series with the projector. Polyester capacitors are recommended, but non-polarized electrolytic or two series back-to-back connected electrolytics, each of twice the value shown, may be used. Table 1 - Recommended Series Protection Capacitor 8 Ohm Driver 25 V 100 mf 25 Volt Line 50 V 50 mf 70. 7 Volt Line 150 V 5 mf 100 Volt Line 150 V 2. 5 mf Table 2 - Power Taps Power 100 Volt 30 W 15 W 7. 5 W 3. 7 W 1. 9 W 335 670 1, 360 2, 700 5, 400 Impedance 70. 7 Volt 167 335 670 1, 360 2, 700 25 Volt 42 84 170 340 Transformer Model (PA430T) A transformer and power selector switch are installed in the rear housing. The level of the PA430T may be adjusted by moving the switch setting (see Table 2) using a coin or screwdriver; turn clockwise to increase the power. Since the same switch and transformer are used for either the 100 volt, 70. 7 volt or 25 volt line, the power setting depends upon the amplifier output that is used, 100 volt, 70. 7 volt or 25 volt. CAUTION: When connected to a 100 volt or 70. 7 volt line, do not use the switch settings marked "DO NOT USE, " as this may result in excessive power driving the PA430T. Figure 2 PA430 Frequency Response (1 watt at 1 meter) Figure 3 PA430 Beamwidth vs. [. . . ] The level of the PA430T may be adjusted by moving the switch setting (see Table 2) using a coin or screwdriver; turn clockwise to increase the power. Since the same switch and transformer are used for either the 100 volt, 70. 7 volt or 25 volt line, the power setting depends upon the amplifier output that is used, 100 volt, 70. 7 volt or 25 volt. CAUTION: When connected to a 100 volt or 70. 7 volt line, do not use the switch settings marked "DO NOT USE, " as this may result in excessive power driving the PA430T. Figure 2 PA430 Frequency Response (1 watt at 1 meter) Figure 3 PA430 Beamwidth vs. Frequency Figure 1 PA430 Polar Response USA Canada Switzerland Germany France Australia Hong Kong Japan Singapore Mexico UK Africa, Mid-East Latin America 12000 Portland Ave South, Burnsville, MN 55337, Phone: 952-884-4051, FAX: 952-884-0043 705 Progress Avenue, Unit 46, Scarborough, Ontario, Canada, M1 H2 X1, Phone:416-431-4975, 800-881-1685. FAX:416-431-4588 Keltenstrasse 11, CH-2663 IPSACH, Switzerland, Phone: 41132-331-6833. [. . . ]

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