Material
Cone: Paper
Spider: Nomex
Surround: Rubber
Coil former: Fiberglass
Basket: Steel
Dust Cap: Glasfaser

Specifications Gladen RS08
DC resistance (Rdc): 3,5 Ω
Nominal impedance (ZN): 4 Ω
Resonance frequency (fs): 39,6 Hz
Voice coil diameter: 1,5 inch
Mechanical Q factor (Qms): 5,96
Electrical Q factor (Qes): 0,55
Total Q factor (Qts): 0,5
Moving mass (Mms): 57,3 g
Effective piston area (Sd): 221 cm²
Mechanical resistance (Rms): 2,5 kg/s
Compliance (Cms): 0,28 mm/N
Force factor (BL): 9,5 Tm
Equivalent air volume (Vas): 18,1 dm³
SPL 2,83V/1m: 88 dB

Specifications Gladen RS08 EXTREME
DC resistance (Rdc): 2 Ω
Nominal impedance (ZN): 2 Ω
Resonance frequency (fs): 36,3 Hz
Voice coil diameter: 1,5 inch
Mechanical Q factor (Qms): 5,65
Electrical Q factor (Qes): 0,40
Total Q factor (Qts): 0,38
Moving mass (Mms): 59,3 g
Effective piston area (Sd): 221 cm²
Mechanical resistance (Rms): 2,4 kg/s
Compliance (Cms): 0,32 mm/N
Force factor (BL): 8,2 Tm
Equivalent air volume (Vas): 21,2 dm³
SPL 2,83V/1m: 89 dB