Four-way, six-driver loudspeaker system with coupled-cavity bass loading.
Drive-units: 1" (25mm) soft-dome tweeter, 6.5" (160mm) polypropylene-cone midrange unit, 2x6.5" (160mm) polypropylene-cone lower midrange units, 2x10" (250mm) pulp-cone woofers.
Crossover frequencies: 2.8kHz, 500Hz, 160Hz.
Frequency response: 35Hz-20kHz ±3dB, -6dB at 32Hz.
Nominal impedance: 4 ohms.
Maximum spl: 118dB.
Sensitivity: 92dB/W/m.
Amplifier requirements: 50-400W.
Dimensions: 47.8" (1266mm) H by 11.8" (300mm) W by 15.3" (390mm) D.
Weight: 108 lbs (49kg).