<p><font size="5"><b>Features:</b></font></p> <ul> <li>10&quot; Dual 4 ohm TR55 Thunder Round Series Subwoofer&nbsp;&nbsp;</li> <li>Peak Power Handling: 600 watts</li> <li>RMS Power Handling: 300 watts</li> <li>Polypropylene cone woofer</li> <li>Stitched NBR surround</li> <li>Die-cast, stamped aluminum basket</li> <li>8-gauge nickel compression terminals</li> <li>Rubber magnet boot</li> <li>Asymmetrical Linear Drive System</li> <li>Flat progressive spider</li> <li>Extended pole piece for smooth, linear, piston like drive</li> <li>Exclusive spider plateau venting cooling system</li> <li>1.75&quot; High temperature voice coil</li> <li>60oz. Magnet</li> <li>Impedance: Dual 4 ohm </li> <li>Frequency response: 35-150 Hz</li> <li>Sensitivity: 85 dB</li> <li>Sealed Box Volume - 0.75 cubic feet</li> <li>Vented Box Volume - 1.45 cubic feet</li> <li>Top Mounting Depth: 6.8&quot;</li> <li>Xmax: 14 mm</li> </ul>