TRF SPL SW1870NDGE D0.5

MODEL: TRF SPL SW1870NDGE D0.7 Size: 18nch
Cone: Carbon FROM MADE IN EUROPE
Surround material: Foam
Voice coil made : MADE IN USA
Voice coil dimension : 4.0inch
Voice coil layer: 8layer
Dust cap : Carbon FROM MADE IN EUROPE
Nominal impedance:D0.5
Voice coil wire:aluminium
Spider dimension : 4”ID / 10”OD
Spider material : NOMEX
Spider layers :5pcs x 2layers
RMS Power: 7000wrms
RMS Program: 20.000 – 25.000wrms 3sec
MAX Watt: 14000wmax
Sensitivity: dB
Revc: 1.000 Ohm
Fo: 51.211 Hz
Sd: 123.786K M²
Md:450.000K g
Mechanical Q factor(Qms):1.578
Electrical Q factor(Qes):0.196
Total Q factor:(Qts):0.174
BL:1.064K TM
VAS : 30.510M M3
Cms: 14.022n M/N
Krm: 27.990m Ohm
Erm: 0.593
Mms: 688.829K g
Mmd:1.000 Kg
Kxm: 44.615m H
Exm: 0.550
Xmax: 31mm
Force factor: N/A
Magnet Weight: -Oz
Net weight: 40kg
Basket:Die cast Alumium
Magnet: Ferrite
Magnet dimension:Φ280*25mm X 3PCS
1=Outer Dimension: 450mm
2=Mounting Depth: 310mm
3=Magnet Dimension: 250mm
4=Mounting Hole Dimension: 425mm