Nominal diameter  

457 mm.

(18 in)

Nominal impedance 

 8 ohms

Power rating  

1200 watts

Sensitivity (1w/1m)  

>99 dB

Frequency range  

46Hz-3.2 kHz

Voice coil material

Voice coil diameter 

SV with Glass Fiber Former

100 mm.

Voice coil length

25 mm.

Magnet material

Magnet dimension 

Ferrite

220x30 mm.

Net weight   

12.5 kgs