LSK-673-1 .DIAPHRAGM:Titanium .MAGNET: 15 OZ(OD90mm) .VOICE COIL: 1.35"(KSV) .MAX POWER: 50W(RMS) .SENSITIVITY(1M/1W): 102 dB .FREQUENCY:800HZ-20KHZ .IMPEDANCE: 8 Ohm