Size: 6 "x9" (16,3 x 23,7 cm) Maximum power consumption: 500W Rated power: 80W Impedance: 4 ohms Frequency response: 27 - 27000 Hz The lowest resonant frequency of 65 Hz Sensitivity (1W/1m): 91 dB Woofer material: Carbon Graphite IMPP aramid fibers Tweeter size (mm): 11.0 mm MF dimensions (mm): 16.0 mm Voice coil: Copper Cut-out Hole: 153 x 222 mm Mounting Depth: 84 mm