CELESTION FTR123070C 12-Inch 350-Watt Subwoofer<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Power rating 1350W rms Nominal impedance 8 Sensitivity 296 dB Frequency range 40-4000 Hz Voice coil diameter 75mm/3 in Chassis typecast Aluminum Magnet type Ferrite</li><li>Nominal diameter 305 mm/12 in</li><li>Magnet weight 2.3kg/81 oz. Coil material Round copper Former material Glass Fibercon material Glass loaded paper with weather-resistant impregnation</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41akJtt4j2L.jpg" noproxy>