Cobreflex IIB

Commercial Sound Horn

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.  The patented (patent # 2,751,996) folded design features two separate air columns in a single assembly that virtually eliminates high-frequency phase cancellation present in re-entrant designs.

The 80-degree horizontal by 60-degree vertical dispersion pattern is beneficial in many applications requiring a wide coverage pattern.  Furthermore, excellent loading is maintained to a low-frequency cutoff of 250 Hz.  The Cobreflex IIB is constructed from a high-impact acrylonitrile butadiene styrene (ABS) with an ultraviolet inhibiting grey paint finish.  A serrated positive-lock “U” mounting bracket is provided for maximum mounting flexibility and ease of installation.

PRODUCT  SPECIFICATIONS:

• Dispersion Pattern: 80° x 60°.

• Driver Required: Yes.  All driver models in the following list are eligible: ID30C-8, ID30CT, ID60C-16, 7110XC, 1828R, 1829, ID30C-16, ID60C-8, ID60T, 1824S, 1828T & ID75.

• Dimensions: 9.3" (23.5 cm.) Height, 18.5" (47.0 cm.) Width, 10.3" (26.0 cm.) Depth.

•  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.

• Physical Construction of the Horn: High impact acrylonitrile butadiene styrene (ABS) with ultraviolet light inhibiting grey paint finish. Positive-lock painted steel U-bracket.

ENGINEER'S PRODUCT  DATA:

The horn shall be of the reflex type featuring two separate air columns within the single assembly. It shall produce a horizontal beamwidth of 80-degrees and a vertical beamwidth of 60-degrees at 2 kHz.  In addition, it shall provide useful acoustic loading at all frequencies above 250 Hz..

NW=7.0