Specs Format : Center Enclosure Type : Bass Reflex (rear ported) Stocked Colours : Blackwood with Piano Black front Bass Unit : 2 x 130 mm (5") Tweeter : 25 mm (1") Rec. Amplifier Power : 25-120W Nominal Impedance : 8 Ohms Sensitivity (1W @ 1M) : 88 dB Frequency Response : 75 Hz - 20 kHz Size (HxWxD) : 150 x 450 x 200 mm Weight : 5.0kg