User manual ELECTRO-VOICE COBREFLEXIIB EDS

[. . . ] 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. [. . . ] The horn shall be the Cobreflex 11B reflex horn. Specifications: Horizontal Beamwidth: 80° @ 2 kHz (see Figure 2) Vertical Beamwidth: 60° @ 2 kHz (see Figure 2) Directivity Factor R (Q): 9. 1 @ 2 kHz (see Figure 3) Usable Low-Frequency Limit: 250 Hz Construction: High impact acrylonitrile butadiene styrene (ABS) with ultraviolet light inhibiting grey paint finish. 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. [. . . ] Specifications subject to change without notice. Part Number 38109-857 Rev A [. . . ]