Specification :

SPECIFICATION
Nominal Basket Diameter 15 " , 381mm
Nominal Impedance* 8 ohms
Power Rating
Watts 450W
Music Program 900W
Resonance 33Hz
Usable Frequency Range 52Hz-2.3kHz
Sensitivity* * * 100.5
Magnet Weight 80 oz.
Gap Height 0.375 " , 9.53mm
Voice Coil Diameter 3 " , 76.2mm

THIELE & SMALL PARAMETERS
Resonant Frequency ( fs) 33Hz
DC Resistance ( Re) 5.22
Coil Inductance ( Le) 1.05mH
Mechanical Q ( Qms) 8.90
Electromagnetic Q ( Qes) 0.33
Total Q ( Qts) 0.32
Compliance Equivalent Volume ( Vas) 321.3 liters / 11.35 cu.ft.
Peak Diaphragm Displacement Volume ( Vd) 343cc
Mechanical Compliance of Suspension ( Cms) 0.31mm/ N
BL Product ( BL) 15.7 T-M
Diaphram Mass inc. Airload ( Mms) 76 grams
Efficiency Bandwidth Product ( EBP) 98
Maximum Linear Excursion ( Xmax) 4.0mm
Surface Area of Cone ( Sd) 856.3 cm2
Maximum Mechanical Limit ( Xlim) 11.6mm

MOUNTING INFORMATION
Recommended Enclosure
Sealed N/ A
Vented 45-113 liters/ 1.6-4 cu.ft.
Overall Diameter 15.16 " , 384.9mm
Baffle Hole Diameter 13.77 " , 349.6mm
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 6.13 " , 156mm
Net Weight 17.6 lbs., 8 kg
Shipping Weight 19.8 lbs., 9 kg

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
Dustcap Composition Solid composition paper dust cap