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Manual abstract: user guide ELECTRO-VOICE COBREFLEXIIB EDS
Detailed instructions for use are in the User's Guide.
[. . . ] Cobreflex IIB
Folded Sectoral Horn
COMMERCIAL
General Product Description
The Cobreflex IIB is an exponentially flared, reflex design for use in public address, paging, and voice warning systems. This reflex construction results in both compactness and high efficiency when combined with appropriate compression drivers. [. . . ] Mechanical Construction of Driver: Threaded metal throat insert to accommodate a screw-in driver with a throat opening of 0. 7 inch to 1. 0 inch diameter and a standard 1 3/8"-18 thread. Dimensions: Height: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23. 5 cm (9. 3 in. ) Width: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47. 0 cm (18. 5 in. ) Depth: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26. 0 cm (10. 3 in. ) Net Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2. 3 kg (5. 1 lb) Shipping Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3. 0 kg (6. 7 lb) Recommended Horns:
ID30C-8 ID30CT ID60C-16
7110XC 1828R 1829
ID30C-16 ID60C-8 ID60T
1824S 1828T ID75
Polar Response
The directional characteristics of the Cobreflex IIB, with driver attached, were measured by running a set of horizontal/ vertical polar responses, in a large anechoic chamber, at each one-third-octave center frequency. The test signal was onethird-octave pseudo-random pink noise centered at the indicated frequencies. The measurement microphone was placed 6. 1 m (20 ft) from the horn mouth, while rotation was about the waveguide geometric apexes. These axes of rotation are quite close to the apparent (acoustic) apexes across the frequency range of measurement. [. . . ] For customer orders, contact the Customer Service department at 800/392-3497 Fax: 800/955-6831 For warranty repair or service information, contact the Service Repair department at 800/685-2606 For technical assistance, contact Technical Support at 866/78 AUDIO Please refer to the Engineering Data Sheet for warranty information. Specifications subject to change without notice.
Part Number 38109-857 Rev A [. . . ]
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