Specifications: 5-way horn-loaded system Frequency response: 22Hz-30KHz, Nominal Impedance: 8 ohms for compression drivers, 4 ohms for woofer. Sensitivity: > 110 for compression drivers, 88 dB for woofer Dimensions: H: 90" (228 cm) D: 60" (152 cm) W: 18" - 48" (45 cm - 121 cm) Weight: 800 lbs (363 Kg)