Features:

• Composition Solid composition paper dust cap
• Nominal Basket Diameter 15", 381mm
• Nominal Impedance 4 ohms

Specifications:

• Nominal Basket Diameter: 15", 381mm
• Nominal Impedance: 4 ohms
• Power Rating:
  • Watts: 450W
  • Music Program: 900W
• Resonance: 31Hz
• Usable Frequency Range: 63Hz - 2.8kHz
• Sensitivity: 98.1dB
• Magnet: 80 oz.
• Gap Height: 0.37", 9.53mm
• Voice Coil Diameter: 3", 76.2mm

• Resonant Frequency (fs): 31Hz
• DC Resistance (Re): 3.68
• Coil Inductance (Le): 0.88mH
• Mechanical Q (Qms): 10.14
• Electromagnetic Q (Qes): 0.25
• Total Q (Qts): 0.25
• Compliance Equivalent Volume (Vas): 329.9 liters / 11.7 cu.ft.
• Peak Diaphragm Displacement Volume (Vd): 206cc
• Mechanical Compliance of Suspension (Cms): 0.35mm/N
• BL Product (BL): 14.7 T-M
• Diaphragm Mass Inc. Airload (MMs): 77 grams
• Efficiency Bandwidth Product (EBP): 124
• Maximum Linear Excursion (Xmax): 2.4mm
• Surface Area of Cone (Sd): 856.3 cm2
• Maximum Mechanical Limit (Xlim): 11.6mm