TRF SPL SW1245 D1

SPECIFICATION:
MODEL:TRF SW1245 D1
Size: 12nch
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 1ohm
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: 86.7dB
Resonance frequency(f0): 40.6 Hz
Mechanical Q factor(Qms):6.24
Electrical Q factor(Qes):0.40
Total Q factor:(Qts):0.38
Xmax: 27mm
Force factor: N/A
Magnet Weight: 400 Oz
Net weight: 32kg
Basket:Die cast Alumium
Magnet: Ferrite
Magnet dimension:Φ250*20mm X 3PCS
1=Outer Dimension: 311mm / 12.2″
2=Mounting Depth: 240mm / 9.45″
3=Magnet Dimension: 260mm/ 10.2″
4=Mounting Hole Dimension: 283mm/ 11.1″