Click Here to Download PDF Spec Sheet
LEGEND CA154

SPECIFICATION
Nominal Basket Diameter 15", 381mm
Nominal Impedance* 4 ohms
Power Rating
Watts 300W
Music Program
Resonance 51.Hz
Usable Frequency Range 45Hz-3.0kHz
Sensitivity*** 96.9
Magnet Weight 56 oz.
Gap Height .38", 9.53mm
Voice Coil Diameter 2.5", 63.5mm

THIELE & SMALL PARAMETERS
Resonant Frequency (fs) 51Hz
DC Resistance (Re) 2.9
Coil Inductance (Le) 0.80mH
Mechanical Q (Qms) 4.94
Electromagnetic Q (Qes) 0.54
Total Q (Qts) 0.49
Compliance Equivalent Volume (Vas) 108.2 liters / 3.82 cu.ft.
Mechanical Compliance of Suspension (Cms) 0.11mm/N
BL Product (BL) 12.2 T-M
Diaphram Mass inc. Airload (Mms) 87 grams
Efficiency Bandwidth Product (EBP) 94
Maximum Linear Excursion (Xmax) 5.0mm
Surface Area of Cone (Sd) 823.7 cm2
Maximum Mechanical Limit (Xlim) 8.0mm

MOUNTING INFORMATION
Recommended Enclosure
Sealed 40-71 liters/1.4-2.5 cu.ft.
Vented 45-170 liters/1.6-6.0 cu.ft.
Overall Diameter 15.15", 384.81mm
Baffle Hole Diameter 13.87",352.3mm
Front Sealing Gasket fitted as standard
Rear Sealing Gasket
Mounting Holes Diameter 0.25", 6.4mm
Mounting Holes B.C. D. 14.56", 369.8mm
Depth 6.25", 159mm
Net Weight 11.9 lbs., 5.4 kg
Shipping Weight 14.1 lbs., 6.4 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 Treated Paper Cone
Cone Edge Composition Sealed Cloth Surround
Dustcap Composition Treated paper dust cap