18-inch, cast aluminium chassis, ferrite magnet LF driver
 
Nominal diameter
457mm / 18in
Power rating
1000W
Continuous power rating
2000W
Rated impedance
8Ω
Sensitivity
97dB
Frequency range
30-2500Hz
Chassis type
Cast aluminium
Magnet type
Ferrite
Magnet weight
3.1kg / 110oz
Voice coil diameter
100mm / 4in
Voice coil material
Round copper
Former material
Glass fibre
Cone material
Glass loaded paper (weather-resistant)
Surround material
Cloth-sealed
Suspension
Double
Gap height (Hg)
10mm / 0.39in
VC winding height (Hvc)
22mm / 0.87in