Type : 2 ways Recommended amplifier : 10 - 80W Sensitivity : 85 db/1 W/1 m Impedance : 6 ohms Frequency response : 39 Hz - 20 kHz Dimensions : H5"x W17" x D8.2" / H127 x L430 x P210 mm Weight : 8.1 lbs / 3,7 kg