• Woofer with high efficiency
• Black nomex spider
• Scooped paper cone
• PP dust-cap
  
  

Material:

• Cone:

  Paper

• Spider:

  Nomex

• Surround:

  Rubber

• Coil former:

  Aluminium

• Basket:

  Steel

• Dust Cap:

  PP

Specifications:

• DC resistance (Rdc):

  3,2 Ω

• Nominal impedance (ZN):

  4 Ω

• Resonance frequency (fs):

  31,3 Hz

• Voice coil diameter:

  2,0 inch

• Mechanical Q factor (Qms):

  5,51

• Electrical Q factor (Qes):

  0,40

• Total Q factor (Qts):

  0,37

• Moving mass (Mms):

  67,2 g

• Effective piston area (Sd):

  366 cm²

• Mechanical resistance (Rms):

  2,3 kg/s 

• Compliance (Cms):

  0,34 mm/N 

• Force factor (BL):

  10,2 Tm 

• Equivalent air volume (Vas):

  63,6 dm³ 

• SPL 2,83V/1m:

  92,1 dB