Speaker midrange paper 4" 45Watt RMS. - 90Watt MAX.
Diameter: 100mm (4'')Impedance: 4 ohmPower: 45 wattMaximum Power: 90 wattFrequency Response: 600-8000HzMagnet Weight: 160 grSensitivity 1w, 1m: 91 dB