SPECIFICATION:

MODEL:TRF SW1845 D1

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 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: 90.2dB

Resonance frequency(f0): 32.2Hz

Mechanical Q factor(Qms):6.54

 

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 - 10.02"

4=Mounting Hole Dimension: 428mm - 16.9"