Specification:
size:                              18''
Rated power:               550w
Peak Power:                1100w
Impedance:                  8 ohm
Sensitivity:                    100dB
Frequency Response: 30hz-2khz
Voice Coil Diameter:   100mm(4 inch)
Magnet Size:                220x110x25.4mm
Packing Size:               50x50x25cm
Aluminium basket