RE Audio REX5 5.25-Inch Co-Ax Kit - Set of 2<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Power Handling: 100W， Nominal Rating: 50W</li><li>Frequency Response: 75-20，000Hz， Efficiency: 89dB</li><li>Impedance: 4 Ohm， Lowest Resonant Frequency: 100Hz， Crossover Frequency: 4，500Hz</li><li>Mounting Depth: 55mm， Dimensions: 160mm x 160mm</li><li>Surround: Rubber， Black Polyester Diaphragm: P.E.I.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/513P-lCEPWL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Mr18XpUWL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41pOXPx3aPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Gt2LwHrnL.jpg" noproxy>