Technical data

Material:

• Cone:

  Paper

• Spider:

  Nomex

• Surround:

  Foam

• Coil former:

  Aluminium

• Basket:

  Aluminum

• Dust Cap:

  PP

Specifications:

• DC resistance (Rdc):

  3,2 Ω

• Nominal impedance (ZN):

  4 Ω

• Resonance frequency (fs):

  45,9 Hz

• Voice coil diameter:

  2,0 inch

• Mechanical Q factor (Qms):

  5,82

• Electrical Q factor (Qes):

  0,54

• Total Q factor (Qts):

  0,49

• Moving mass (Mms):

  51,1 g

• Effective piston area (Sd):

  221 cm²

• Mechanical resistance (Rms):

  2,5 kg/s 

• Compliance (Cms):

  0,23 mm/N 

• Force factor (BL):

  9,4 Tm 

• Equivalent air volume (Vas):

  13,3 liters

• SPL 2,83V/1m:

  88,6 dB