ALPHA-10A Series Standard American 

Recommended for professional audio mid-bass applications in a small sealed cabinet.

SPECIFICATION

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

THIELE & Small Parameters

• Resonant Frequency (fs) 50 Hz
• DC Resistance (Re) 5.31
• Coil Inductance (Le) 0.66 mH
• 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) 114 cc
• Mechanical Compliance of Suspension (Cms) 0.46 mm/N
• BL Product (BL) 7.5 T-M
• Diaphragm Mass inc. Airload (Mms) 22 grams
• Efficiency Bandwidth Product (EBP) 76
• Maximum Linear Excursion (Xmax) 3.2 mm
• Surface Area of Cone (Sd) 355.4 cm²
• Maximum Mechanical Limit (Xlim) 9.1 mm

MOUNTING Information

• Recommended Enclosure Volume 
  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", 256.8 mm
• Baffle Hole Diameter 9.13", 231.8 mm
• Front Sealing Gasket fitted as standard
• Rear Sealing Gasket fitted as standard
• Mounting Holes Diameter 0.23", 5.7 mm
• Mounting Holes B.C.D. 9.6", 243.8 mm
• Depth 3.90", 99 mm

MATERIALS of Construction

• Copper voice coil
• Polyimide former
• Ferrite magnet
• Vented and extended core
• Pressed steel basket
• Paper Cone
• Cloth cone edge
• Solid composition paper dust cap