Specification:

• Nominal Basket Diameter 15", 381mm
• Nominal Impedance* 8 ohms
• Power Rating**
  • Watts 600W
  • Music Program 1200W
• Resonance 39Hz
• Usable Frequency Range 38Hz - 2.7kHz
• Sensitivity*** 99dB
• Magnet Weight 95 oz.
• Gap Height 0.37", 9.53mm
• Voice Coil Diameter 3", 76.2mm

Thiele & Small Parameters:

• Resonant Frequency (fs) 39Hz
• DC Resistance (Re) 5.4
• Coil Inductance (Le) 1.27mH
• Mechanical Q (Qms) 6.08
• Electromagnetic Q (Qes) 0.41
• Total Q (Qts) 0.38
• Compliance Equivalent Volume (Vas) 159 liters / 5.6 cu.ft.
• Peak Diaphragm Displacement Volume (Vd) 471cc
• Mechanical Compliance of Suspension (Cms) 0.15mm/N
• BL Product (BL) 18.6 T-M
• Diaphragm Mass Inc. Airload (MMs) 105 grams
• Efficiency Bandwidth Product (EBP) 95
• Maximum Linear Excursion (Xmax) 5.5mm
• Surface Area of Cone (Sd) 856.3 cm2
• Maximum Mechanical Limit (Xlim) 10.4mm

Mounting Information:

• Recommended Enclosure Volume
  • Sealed N/a
  • Vented 62-193 liters / 2.2-6.8 cu.ft.
• Driver Volume Displaced 251.7 cu.in. / 4.12 liters
• Overall Diameter 15.16", 384.9mm
• Baffle Hole Diameter 13.87", 352.3mm
• Front Sealing Gasket Fitted as standard
• Rear Sealing Gasket Fitted as standard
• Mounting Holes Diameter 0.25", 6.4mm
• Mounting Holes B.C.D. 14.56", 369.9mm
• Depth 162mm, 6.38"
• Net Weight 20 lbs, 9.1 kg
• Shipping Weight 22.3 lbs, 10.1 kgs

Materials of Construction:

• Coil Construction Copper voice coil
• Coil Former Polyimide former
• Magnet Composition Ferrite magnet
• Core Details Vented core
• Basket Materials Pressed steel basket
• Cone Composition Paper cone
• Cone Edge Composition Cloth cone edge
• Dust Cap Composition Solid composition paper dust cap