Voice Coil Impedance: 8 Ohm(at 1 KHz) Voice Coil Dimen(Dia.): D25.4mm Magnet Size(Neo.): 60x32x10mm Rated Voltage: 12VDC Operating Voltage: 6-14VDC S.P.L: 112x2dB at 12VDC/1cm Max.Current Draw: 1100mA at 12VDC Tone Nature: Warble or 6 Tone Operating Temperature: -20-60¡æ Weight: 445x10Kgs N.W/G.w: 18x19g Meas/QTY: 23x47x39cm/40pcs