Basket:Steel 
Cone: Glassfibre Cone With Rubber Edge

Size: 4" 2 Way
Voice Coil: 1"
Magnet : 6 oz
Tweeter:1"Silk Dome
RMS Power: 100W
MAX Power: 200W
Nominal Impedance: 4 Ohm 
Frequency Response: 100Hz~20KHz
Sensitivity: 92dB