MATERIAL:

• Cone: Paper
• Spider: Nomex
• Surround: Rubber
• Coil former: Fibreglass
• Basket: Aluminum
• Dust Cap: Fiberglass

SPECIFICATIONS:

• DC resistance (Rdc): 3,5 Ω
• Nominal impedance (ZN): 4 Ω
• Resonance frequency (fs): 31,2 Hz
• Voice coil diameter: 2 inch
• Mechanical Q factor (Qms): 5,64
• Electrical Q factor (Qes): 0,35
• Total Q factor (Qts): 0,33
• Moving mass (Mms): 96,5 g
• Effective piston area (Sd): 366 cm²
• Mechanical resistance (Rms): 5,1 kg/s 
• Compliance (Cms): 0,25 mm/N 
• Force factor (BL): 14,1 Tm 
• Equivalent air volume (Vas): 51 dm³
• SPL 2,83V/1m: 91,5 dB