... QUALITY SUBWOOFER HIGH QUALITY SUBWOOFERYS-B12042 magnet: 40 OZ,Y25frame: black matt iron frameT-yoke: Dφ127×dφ48.6×h32×H6 ... .5×H8,dull polish.voice coil: single 40HM,2",4layers,black aluminum,EI wire.cone: rubber edge Al-conemagnet cover ... : black rubber coverterminal: Chrome finish copper terminaldamper: yellow PCKgasket: silver plastic ...