Cambridge Audio Minx C46 Ceiling Speaker (Single)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>1 x 2.25 inch (57mm) BMR driver</li><li>8 Ohms compatible</li><li>Recommended amplifier power 15-200 Watts</li><li>Dimensions 98mm (3.6 inch) height x 88mm (3.4 inch) diameter.</li><li>Mounting hole required: 75mm (3 inch).</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31gExJSwuJL.jpg" noproxy>