Basket:Die-casting
Cone:Compound Weave Non-pressed Paper Cone With Foam Edge

Size: 12"
Voice Coil: 2.5" AL
Magnet : 100oz
RMS Power: 500W
MAX Power: 1000W
Nominal Impedance: 4 Ohm 
Frequency Response: 32Hz~1KHz
Sensitivity: 90dB