• 38 cm / 15" subwoofer
• 2x 1250 / 1875 Watts
• 2x 1 Ohm impedance
• Low bass long excursion subwoofer
• 4" flat wire voice coil, 4 ply, made in USA
• 4-ply nomex center spider
• Carbon fiber dust cap
• Paper cone
• Extra wide long excursion foam surround
• 80 mm ferrite magnet system (quad stack)

Material:

• Cone: Paper
• Spider: Nomex
• Surround: Foam
• Coil former: Aluminium
• Basket: Aluminum
• Dust Cap: Carbon

Specifications:

• DC resistance (Rdc): 2x 0.9 Ω
• Nominal impedance (ZN): 2x 1 Ω
• Resonance frequency (fs): 32.2 Hz
• Voice coil diameter: 100 mm
• Mechanical Q factor (Qms): 5.60
• Electrical Q factor (Qes): 0.56
• Total Q factor (Qts): 0.51
• Moving mass (Mms): 464.3 g
• Effective piston area (Sd): 830 cm²
• Mechanical resistance (Rms): 16.8 kg/s
• Compliance (Cms): 0.05 mm/N
• Force factor (BL): 17.3 Tm
• Equivalent air volume (Vas): 46.4 dm³
• Efficiency (η): 0.27%
• SPL 2,83 V / 1 m: 86.2 dB