TRF SPL SW1845 D0.5

SPECIFICATION:
MODEL:TRF SW1845 D0.5
Size: 18nch
Cone: Competition Grade paper
Surround material: Foam with FABRIC
Voice coil made : MADE IN USA
Voice coil dimension : 4.0inch
Voice coil layer: 8layer
Dust cap : Carbon FROM MADE IN EUROPE
Nominal impedance:dual 0.5ohm
Voice coil wire:aluminium
Spider dimension : 4”ID / 10”OD
Spider material : NOMEX
Spider layers :2pcs x 4layers
RMS Power: 4500wrms
MAX Watt: 9000wmax
Sensitivity:90.2dB
Resonance frequency(f0): 32.2
Mechanical Q factor(Qms):6.54Hz
 
Electrical Q factor(Qes):0.43
Total Q factor:(Qts):0.40
Xmax:27mm
Force factor: N/A
Magnet Weight: 400Oz
Net weight: 34kg
Basket:Die cast Alumium
Magnet: Ferrite
Magnet dimension:Φ250*20mm X 3PCS
1=Outer Dimension: 467mm – 18.4″
2=Mounting Depth: 310mm – 12.2″
3=Magnet Dimension: 260mm – 10.2″
4=Mounting Hole Dimension: 428mm – 16.9″