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