Lanzar DCTOA184 Distinct Open Air SVC Distinct Series 18-Inch High Power IB Open Free-Air 4 Ohm Subwoofer SVC， Set of 1<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>18" High Power Open Air 4 Ohm Woofer - 60 OZ. High Density Barium Ferrite Magnet</li><li>3" (75mm) High Temperature Aluminum Voice Coil - Stamped Steel Basket</li><li>Power Handing: 300 Watts RMS/600 Watts Peak - Frequency Response: 30-1.8kHz</li><li>Black Pressed Paper Cone with Reinforced Foam Surround - Sensitivity: 95±2dB (1w/1m)</li><li>Mounting Depth: 7.33" - Overall Diameter: 18.11" - Cutout Diameter: 16.14"</li></ul></div><img src="http://ecx.images-amazon.com/images/I/515DFTvAizL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51JxwkeI3JL.jpg" noproxy>