18FWS125V2 Subwoofers 18 inchs

Notes

5 INCH COPPER VOICE COIL  

97 dB/SPL SENSITIVITY  

3600 WATT PROGRAM POWER HANDING  

FEM OPTIMIZED MOTOR AND SUSPENSIONS  

54mm PEAK TO PEAK MAXIMUM EXCURSION  

OPTIMIZED COOLING SYSTEM   

DOUBLE SPIDER   

RESONANCE FREE AND HEAVY DUTY BASKET DESIGN   

TRIPLE ROLL SURROUND

GENERAL SPECIFICATIONS

Nominal diameter 461(18) mm (in.)
Nominal impedance 8 Ω
Minimum impedance 8 Ω
Program power (1) 3600 W
AES Power rating(2) 1800 W
Sensitivity (3) 97 dB
Frequency range 36 ~ 1000 Hz
Voice coil diameter 125(5) mm (in.)
Chassis material Aluminium
Magnet material Ferrite
Magnet dimensions (ODxIDxh) 253 x 140 x 25 2pcs mm
Coil material CCAW
Former material Glass Fiber
Xmax(4) 17 mm
Xmech(5) 27 mm
Gap height 16 mm
Voice coil Wingding height 42 mm

SMALL SIGNAL PARAMETERS

DC resistance(Re) 6 Ω
Resonance frequency(Fs) 36 Hz
Moving mass(Mms) 262 g
Compliance(Cms) 0.09 mm/N
Force factor(BL) 29.6 N/A
Mechanical Q-factor(Qms) 8.02
Electrical Q-factor(Qes) 0.42
Total Q-factor(Qts) 0.40
Equivalent air volume(Vas) 207 I
Voice coil Inductance(Le) 3.2 mH
Diaphragm area(Sd) 1325 cm2
Reference efficiency(Eta O) 2.7 %

SHIPPING INFORMATION

Net weight 22 Kg
Multipack size (1) (W x D x H) 485 x 485 x 265 mm
Multipack weight 24 Kg

OTHERS

(1)Program power is defined as 3 dB greater than AES Power.
(2) Tested for two hours using a continuous, band-limited pink noise signal as per AES 2-1984 Rev. 2003. Loudspeaker tested in free air.
(3) From T/S parameters, measured with LMS DA LPM module.
(4) The Xmax is calculated as: (Hvc - Hg)/2+ Hg/4. Hvc is the voice coil height and Hg the gap height.
(5) The Xmech is calculated as: (Hvc - Hg)/2 +(Hg-2). Hvc is the voice coil height and Hg the gap height.
(6) Thiele-Small parameters are measured after preconditioning: a) at 20°C- 22°C, 50% humidity for 2 hours; b) by LMS LSI measurement.