Parameters Model No.: GCL12 12inch Low frequency speaker Die-cast aluminum basket Paper cone with red cloth surround High efficiency 40Oz Magnet 2" (50.8mm) Hi-temp voice coil Nomal Impedance: 8Ohm SPL 95dB/W/M RMS/Musical/Max.Power: 250W/500W/1000W 10" and 18" will be available     Specifications Unpressed on-paper cone for smooth frequency response 2.5” aluminium voice coil for high efficiency and power handling Barium ferrite magnet for maximum energy transfer Rubber suspension for deep frequency response Extended vented pole piece Designed for small sealed and vented enclosures