ARCHITECTS & ENGINEERS SPECIFICATION
The loudspeaker system shall be a low frequency, multi- purpose trapezoid enclosure consisting of two 15-inch / 380mm cast frame loudspeaker components with moisture- resistant cones. The loudspeaker system shall have an operating bandwidth of 42 Hz - 650 Hz with a sensitivity of 103 dB when measured at a distance of one meter. The power handling capability shall be 500 W AES (2,000 W peak). Nominal impedance shall be 4.0 ohms with a minimum impedance of 3.5 ohms at 41 Hz. The unit shall be a trapezoid enclosure constructed of 18 mm
birch plywood with a cloth covered metal grille. The cabinet shall include integral steel-reinforced suspension points. Forged shoulder machinery eye bolts shall be included to facilitate the suspension of the speaker system. The dimensions shall be 37.50 inches (953 mm) high by
24.13inches (613 mm) wide by 26.13 inches (664 mm) deep. The loudspeaker system shall weigh 115 pounds (52.3 kg). The loudspeaker system shall be the Altec Lansing Professional model LF215-4A.