Recommended for professional audio as a mid-bass or vocal wedge in a sealed enclosure. Also suitable as a mid-bass or woofer in vented enclosures.

Specification

• Nominal Basket Diameter 15", 381mm
• Nominal Impedance* 16 ohms
• Power Rating**
• Watts 400W
• Music Program 800W
• Resonance 45Hz
• Usable Frequency Range 64Hz - 4kHz
• Sensitivity*** 100dB
• Magnet Weight 56 oz.
• Gap Height 0.37", 9.53mm
• Voice Coil Diameter 2.5", 63.5mm

Thiele & Small Parameters

• Resonant Frequency (fs) 45Hz
• DC Resistance (Re) 11.3
• Coil Inductance (Le) 1.35mH
• Mechanical Q (Qms) 6.54
• Electromagnetic Q (Qes) 0.67
• Total Q (Qts) 0.61
• Compliance Equivalent Volume (Vas) 204 liters / 7.2 cu.ft.
• Peak Diaphragm Displacement Volume (Vd) 137cc
• Mechanical Compliance of Suspension (Cms) 0.19mm/N
• BL Product (BL) 17.6 T-M
• Diaphragm Mass Inc. Airload (MMs) 64 grams
• Efficiency Bandwidth Product (EBP) 68
• Maximum Linear Excursion (Xmax) 1.6mm
• Surface Area of Cone (Sd) 856.3 cm2
• Maximum Mechanical Limit (Xlim) 11mm

Mounting Information

• Recommended Enclosure Volume
• Sealed 31-42.5 liters / 1.09-1.5 cu.ft.
• Vented 81.8-87.8 liters / 2.89-3.1 cu.ft.
• Driver Volume Displaced 220.8 cu.in. / 3.62 liters
• Overall Diameter 15.15", 384.8mm
• 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 154mm, 6.05"
• Net Weight 12.3 lbs, 5.6 kg
• Shipping Weight 14.3 lbs, 6.5 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