TRF SPL SW2140NDGE D1

SPECIFICATION: MODEL:TRF SPL SW2140NDGE D1 Size: 21nch Cone: Carbon FROM MADE IN EUROPE Surround material: Foam Voice coil made : MADE IN USA or MADE IN GREECE Voice coil dimension : 3.0inch Voice coil layer: 8layer Dust cap : Carbon FROM MADE IN EUROPE Nominal impedance:dual 1ohm Voice coil wire:aluminium Spider dimension : 3''ID / 10''OD Spider material : NOMEX Spider layers :5pcs x 2layers RMS Power: 4000wrms RMS Program: 10.000wrms MAX Watt: 8.000wmax Sensitivity: 96dB Vas: 250 L Resonance frequency(fs): 31Hz Frequency range:31-100Hz Mechanical Q factor(Qms): Electrical Q factor(Qes): Total Q factor:(Qts): Xmax: 40mm Force factor: N/A Net weight: 46kg Basket:Die cast Alumium Magnet: NEODYMIUM Magnet:NEODYMIUM ''high performance magnet'' Magnet dimension:Φ260*30mm X 1SET 1=Outer Dimension: 550mm 2=Mounting Depth: 330mm 3=Magnet Dimension: 260mm 4=Mounting Hole Dimension:500mm