18inch 8-ohm 2000W rms Subwoofer

Nominal diameter 461(18) mm (in.)
Nominal impedance 8 Ω
Minimum impedance 7.9 Ω
Program power (1) 4000 W
AES Power rating(2) 2000 W
Sensitivity (3) 97.4 dB
Frequency range 34 ~ 1000 Hz
Voice coil diameter 125(5) mm (in.)
Chassis material Aluminium
Magnet material Ferrite
Magnet dimensions (ODxIDxh) 280 x 140 x 25 2pcs mm
Coil material SV
Former material Glass Fiber
Xmax(4) 17.5 mm
Xmech(5) 26 mm
Gap height 14 mm
Voice coil Winding height 42 mm

DC resistance(Re) 6 Ω
Resonance frequency(Fs) 34 Hz
Moving mass(Mms) 279 g
Compliance(Cms) 0.08 mm/N
Force factor(BL) 30.1 N/A
Mechanical Q-factor(Qms) 7.9
Electrical Q-factor(Qes) 0.37
Total Q-factor(Qts) 0.35
Equivalent air volume(Vas) 226 I
Voice coil Inductance(Le) 2.9 mH
Diaphragm area(Sd) 1325 cm2
Reference efficiency(Eta O) 2.9 %

Net weight 25.7 Kg
Multipack size (1) (W x D x H) 485 x 485 x 265 mm
Multipack weight 27.7 Kg