These ceiling speakers are a 2 way speaker design giving excellent audio quality compared to traditional PA speakers. Combining a coaxial woofer with dome tweeter they are available in three sizes to cover a variety of domestic and commercial applications. Two of the models also have adjustable tweeter mounts making them ideal when used in a home theatre setup by allowing you to direct high frequencies towards the centre of a room. The flush mount design and fold out retaining clamps allow them to be easily installed in new or existing ceilings, and the matte white finish blends in with most ceiling colours. Sold as a pair Woofer: 6.5 polymer cone Tweeter: 25mm silk dome Tweeter mount: Swivel Nominal Impedance 8? RMS Power Rating 40W Frequency Response 180Hz-18Hz Side-to-Side Diameter (A) 230mm Speaker Type Ceiling/Wall Speaker Driver Channels 2-Way Speaker Cutout Diameter (C) 198mm Insert Depth (D) 85mm