Type 3 - Way Enclosure type Reflex Frequency response ± 3dB 38 - 20000 Nominal impedance 6 Ohm Amplifier Requirements 50 - 300 Sensitivity (2.83V/1m) 87 dB Tweeter 25 mm Midrange 165 mm Woofer 165 mm Dimensions (H x W x D) 900 x 184 x 250 mm Weight 19.3 kg