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GAMMA 15A-2
SPECIFICATION
Nominal Basket Diameter 15", 381mm
Nominal Impedance* 8 ohms
Power Rating
Watts 300W
Music Program 600W
Resonance 33Hz
Usable Frequency Range 48Hz-3.3kHz
Sensitivity*** 98.6
Magnet Weight 59 oz.
Gap Height 0.312", 7.92mm
Voice Coil Diameter 2", 50.8mm

THIELE & SMALL PARAMETERS
Resonant Frequency (fs) 33Hz
DC Resistance (Re) 5.98
Coil Inductance (Le) 1.73mH
Mechanical Q (Qms) 5.13
Electromagnetic Q (Qes) 0.32
Total Q (Qts) 0.30
Compliance Equivalent Volume (Vas) 314.1 liters / 11.1 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 257cc
Mechanical Compliance of Suspension (Cms) 0.31mm/N
BL Product (BL) 17.2 T-M
Diaphram Mass inc. Airload (Mms) 78 grams
Efficiency Bandwidth Product (EBP) 103
Maximum Linear Excursion (Xmax) 3.0mm
Surface Area of Cone (Sd) 856.3 cm2
Maximum Mechanical Limit (Xlim) 11.8mm

MOUNTING INFORMATION
Recommended Enclosure
Sealed N/A
Vented 40-136 liters/1.4-4.8 cu.ft.
Overall Diameter 15.15", 384.8mm
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 5.94", 151mm
Net Weight 11.8 lbs., 5.4 kg
Shipping Weight 14.1 lbs., 6.4 kg

MATERIALS OF CONSTRUCTION
Coil Construction Aluminum 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