OSD Audio IWS8 Passive 8-inch In-Wall 150-Watt Subwoofer Speaker<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>8-Inch Polypropylene Woofer with Butyl Rubber Surround for High Performance</li><li>Power Handling: 25 to 150-Watts ; Impedance: 8 ohm</li><li>Frequency Response: 40Hz - 200Hz +/-3dB ; Sensitivity: 2.83V/1m: 87dB</li><li>Cut-Out Dimension: 8 3/4 x 8 3/4 Inches (222 x 222mm) ; Mounting Depth: 3 5/8-Inch</li><li>Note: Requires Additional Subwoofer Amplifier</li><li>Shipping: This item does not ship outside the U.S</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51gYy7FU0OL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Q4X0PaDLL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/411WyRPmKvL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Ptbx3K6kL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/61JVDt8CcWL.jpg" noproxy>