175 Pounds (79 kg each) each SPECIFICATIONS Driver Complement: 1" Concave Diamond Diaphragm tweeter 3 1/2" Concave Ceramic Dome Midrange 11" Nomex Kevlar Composite Cone Woofer Sensitivity: 89 dB Impedance: 4 Ohms Nominal Frequency Response: 24 Hz to 50 kHz Recommended Amplifier Power: 25 to 400 Watts Wiring Methods: Two Position Binding Post Dimensions: 49” (125 cm) High 12" (30 cm) Wide 17" (43 cm) Deep Weight: