MartinLogan Dynamo 1000W 12-inch Wireless Ready Subwoofer (Single， Black)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Built-in wireless receiver offers extreme placement flexibility when used with the included SWT-2 MartinLogan Subwoofer Wireless Transmitter in which case， cable clutter also becomes a moot point</li><li>High-resolution low-distortion 12-Inch woofer pairs a high-power magnet structure with a 10-inch diaphragm to deliver huge excursion</li><li>Advanced ultra-efficient 500-watt amplifier uses variable audio tracking power supplies to drive its class AB output stage</li><li>Front-firing or down-firing configuration easily converts without need of tools to maximize performance when installed inside</li><li>The Dynamo 1000 comes with custom ETC spikes which can be used in place of the feet to enhance stability on thick carpets</li></ul></div><img src="http://ecx.images-amazon.com/images/I/413KPSwo0wL.jpg" noproxy>