More on Amazon.com : http://www.amazon.com/gp/product/B002O3W2SO?tag=purrfectcatdi-20 <br /> <br />MartinLogan Dynamo 1000W 12-inch Wireless Ready Subwoofer (Single Black) <br /> <br />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 <br />High-resolution low-distortion 12-Inch woofer pairs a high-power magnet structure with a 10-inch diaphragm to deliver huge excursion <br />Advanced ultra-efficient 500-watt amplifier uses variable audio tracking power supplies to drive its class AB output stage <br />Front-firing or down-firing configuration easily converts without need of tools to maximize performance when installed inside <br />The Dynamo 1000 comes with custom ETC spikes which can be used in place of the feet to enhance stability on thick carpets
