Architect's & Engineer's Specifications

The passive column array loudspeaker shall consist of eight 3 inch (76 mm) full-range Neodymium transducers with 0.75 inch (20 mm) voice coil. Performance specifications of a typical production unit shall be: Measured sensitivity SPL at 1 m (3.3ft) with 2.0V input, shall be 96 dB-SPL. Usable frequency response shall extend from 130 Hz to 20 kHz (10 dB below rated sensitivity, in full space, with no external equalization). Nominal impedance shall be 4 Ohms. Rated power capacity shall be at least 240 Watts continuous power and 960 Watts peak power, defined as 6 dB above a test signal of filtered random noise. The system shall be capable of even coverage at a nominal 90° horizontal through 20° vertical distributed pattern. The enclosure shall be constructed from prime-grade 12 mm plywood. The loudspeaker shall be equipped with a total of seven (7) suspension points. The grille shall be of heavy-duty steel backed with acoustically transparent foam. The external wiring shall be via either two 4-pin twist-lock or one 4-pin Euroblock connectors. The loudspeaker shall be 33.74 inches (857 mm) high by 4.72 inches (121 mm) wide by 4.98 inches (126.5 mm) deep weighing 10.7 pounds (4.9 kg). The finish shall be a paintable lightly textured black or white. The compact column array loudspeaker shall be the Crest Audio CPL 8L+ or approved equivalent.