KEF iQ5 3-Way Floor Standing Speaker (Black Ash) (Discontinued by Manufacturer) Three-way bass reflex design; elegant black ash wood finish Drive units: 5-1/4 inch LF, 5-1/4 inch Uni-Q, 3/4 inch aluminum dome HF Frequency response: 43Hz - 40kHz Sensitivity (2.83V/1m): 88dB Dimensions (HxWxD): 32 x 6.9 x 10.3 inches