Specification :

SPECIFICATION
Nominal Basket Diameter 15 " , 381mm
Nominal Impedance* 8 ohms
Power Rating
Watts 500W
Music Program 1000W
Resonance 47Hz
Usable Frequency Range 46Hz-4kHz
Sensitivity* * * 101
Magnet Weight 80 oz.
Gap Height 0.375 " , 9.53mm
Voice Coil Diameter 3 " , 76.2mm

THIELE & SMALL PARAMETERS
Resonant Frequency ( fs) 47Hz
DC Resistance ( Re) 5.23
Coil Inductance ( Le) 1.01mH
Mechanical Q ( Qms) 8.01
Electromagnetic Q ( Qes) 0.40
Total Q ( Qts) 0.38
Compliance Equivalent Volume ( Vas) 167.7 liters / 5.9 cu.ft.
Peak Diaphragm Displacement Volume ( Vd) 274cc
Mechanical Compliance of Suspension ( Cms) 0.16mm/ N
BL Product ( BL) 16.6 T-M
Diaphram Mass inc. Airload ( Mms) 72 grams
Efficiency Bandwidth Product ( EBP) 118
Maximum Linear Excursion ( Xmax) 3.2mm
Surface Area of Cone ( Sd) 856.3 cm2
Maximum Mechanical Limit ( Xlim) 13.2mm

MOUNTING INFORMATION
Recommended Enclosure
Sealed N/ A
Vented 54-184 liters/ 1.9-6.5 cu.ft.
Overall Diameter 15.32 " , 389.1mm
Baffle Hole Diameter 14.0 " , 355.6mm
Front Sealing Gasket Fitted as standard
Rear Sealing Gasket Fitted as standard
Mounting Holes Diameter 0.28 " , 7.1mm
Mounting Holes B.C. D. 14.56 " , 369.9mm
Depth 6.06 " , 154mm
Net Weight 16.9 lbs., 7.7 kg
Shipping Weight 19.5 lbs., 8.9 kg

MATERIALS OF CONSTRUCTION
Coil Construction Aluminum voice coil
Coil Former Polyimide former
Magnet Composition Ferrite magnet
Core Details Vented core
Basket Materials Die-cast aluminum basket
Cone Composition Paper Cone
Cone Edge Composition Cloth cone edge
Dustcap Composition Solid composition paper dust cap