Architect's & Engineer's Specifications

The loudspeaker shall consist of a 12 inch (305 mm) nominal low frequency transducer and a high frequency compression driver on a quadratic throat waveguide horn with a 110 deg. x 80 deg. nominal coverage pattern. The frame of the low frequency transducer shall be made of cast aluminum, and the magnetic assembly shall use a ferrite magnet and the voice coil shall be 4 inches (100 mm) in nominal diameter and made of edgewound aluminum ribbon wire. The high frequency section shall be driven by a compression driver capable of 60 Watts power input above 1 kHz. The compression driver voice coil shall be no less than 2 inches (50 mm) in nominal diameter, utilize a titanium diaphragm and a Neodymium magnet structure. Input to the loudspeaker system shall consist of two NL-4 four-pin twist-lock connectors, both in parallel with a 4 position screw terminal barrier strip with contact guard cover. The speaker system shall have an IP rating of IP44, when properly installed, according to the instructions. The loudspeaker system shall have an operating bandwidth of 67 Hz to 18 kHz. The nominal output level shall be 96 dB when measured at a distance of 1 meter with an input of 1 Watt. The nominal impedance shall be 8 Ohms. The maximum continuous power handling shall be 500 Watts, with maximum program power of 1,000 Watts, peak power input of at least 2,000 Watts and a minimum amplifier headroom of 3 dB. The nominal radiation geometry shall be 110 degrees symmetrical about the center axis in the horizontal plane, and +30, -50 degrees about the center axis in the vertical plane. Fly point inserts shall be provided, 8 per cabinet, at the following locations: 4 top, and 4 on the left side. The enclosure shall be constructed of white polypropylene plastic with textured surface and a white powder-coated perforated full-coverage grille. The outside dimensions shall be 25.30 inches (643 mm) high by 14.38 inches (366 mm) wide by 14 inches (356 mm) deep. The weight shall be 45 lbs (20.4 kg). The loudspeaker system shall be a Peavey model Impulse 1012 in white or approved equivalent.