Parameters   Model No:CMK2 12 2*12" SEALED SUBWOOFER BOX 2.5" VOICE COIL 2*50 OZ MAGNET NON-PRESSED PAPER CONE WITH RUBBER SURROUND 15MM MDF WITH BLACK CARPET COVERED 4 OHM IMPEDANCE 500 WATTS RMS FREQUENCY RESPONSE: 20~500 HZ WOODEN BOX SIZE: (240+380)X790X380MM