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ALPHA-10A
SPECIFICATION
Nominal Basket Diameter 10", 254mm
Nominal Impedance* 8 ohms
Power Rating
Watts 150W
Music Program 300W
Resonance 50Hz
Usable Frequency Range 57Hz-4.5kHz
Sensitivity*** 95.6
Magnet Weight 20 oz.
Gap Height 0.25", 6.35mm
Voice Coil Diameter 1.5", 38.1mm

THIELE & SMALL PARAMETERS
Resonant Frequency (fs) 50Hz
DC Resistance (Re) 5.31
Coil Inductance (Le) 0.66mH
Mechanical Q (Qms) 5.21
Electromagnetic Q (Qes) 0.66
Total Q (Qts) 0.59
Compliance Equivalent Volume (Vas) 82.2 liters / 2.9 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 114cc
Mechanical Compliance of Suspension (Cms) 0.46mm/N
BL Product (BL) 7.5 T-M
Diaphram Mass inc. Airload (Mms) 22 grams
Efficiency Bandwidth Product (EBP) 76
Maximum Linear Excursion (Xmax) 3.2mm
Surface Area of Cone (Sd) 355.4 cm2
Maximum Mechanical Limit (Xlim) 9.1mm

MOUNTING INFORMATION
Recommended Enclosure
Sealed 8.5-11.3 liters/0.3-0.4 cu.ft.
Vented 28.3-53.8 liters/1.0-1.9 cu.ft.
Overall Diameter 10.11", 256.8mm
Baffle Hole Diameter 9.13", 231.8mm
Front Sealing Gasket Fitted as standard
Rear Sealing Gasket Fitted as standard
Mounting Holes Diameter 0.23", 5.7mm
Mounting Holes B.C. D. 9.6", 243.8mm
Depth 3.90", 99mm
Net Weight 4.5 lbs., 2 kg
Shipping Weight 5.6 lbs., 2.5 kg

MATERIALS OF CONSTRUCTION
Coil Construction Copper voice coil
Coil Former Polyimide former
Magnet Composition Ferrite magnet
Core Details Vented and extended core
Basket Materials Pressed steel basket
Cone Composition Paper Cone
Cone Edge Composition Cloth cone edge
Dustcap Composition Solid composition paper dust cap