Architect's & Engineer's Specifications

The loudspeaker shall be equipped with a 8 inch (203 mm) woofer, combined with a 1 inch (25 mm) silk dome tweeter. The nominal radiation geometry shall be 80 degrees in the horizontal plane, and 50 degrees in the vertical plane. The unit shall accept low impedance signals as well as 70/100V constant voltage lines via the internal transformer with taps from 5W to 30W at 100V, and 2.5W to 15W at 70V. Performance specifications of a typical production unit, measured sensitivity SPL at 1 m (3.3ft) with 2.83V input, shall be 88 dB-SPL. Usable frequency response shall extend from 50 Hz to 20 kHz (10 dB below rated sensitivity, with no external equalization). Nominal impedance shall be 8 Ohms. Rated power capacity shall be at least 70 Watts continuous power, defined as 3 dB above a test signal of filtered random noise. The weather resitant enclosure shall be constructed of durable molded black polypropylene plastic with textured surface and a black perforated full-coverage grille. A steel wall mounting bracket shall be included. The external wiring shall be via 2-pin srew terminal connectors. The outside dimensions shall be 14.65 inches (372 mm) high by 9.25 inches (235 mm) wide by 10.55 inches (268 mm) deep. The weight shall be 12 lbs (5.5 kg). The loudspeaker system shall be a Peavey model Impulse 8c Black or approved equivalent.