Eminence Alpha-10A 10" 8 ohm 150W Midbass Pro Audio Woofer

SKU: 545-009

Canadian Dollar Price:
Sale price$132.99
In stock (6 units)


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

Manufacturer Spec Sheet

Example Cabinet Designs

Speaker Detail
Nominal Basket Diameter 10", 254 mm
Nominal Impedance* 8 Ω
Power Rating*
Program Power 300 W
Watts 150 W
Resonance 50 Hz
Usable Frequency Range 57 Hz - 4.5 kHz
Sensitivity* 95.6 dB
Magnet Weight 20 oz.
Gap Height 0.25", 6.4 mm
Voice Coil Diameter 1.5", 38 mm
Thiele & Small Parameters
Resonant Frequency (fs) 50 Hz
DC Resistance (Re) 5.31 Ω
Coil Inductance (Le) 0.66m H
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 / 1-1.9 cu.ft.
Driver Volume Displaced 0.034 cu.ft. / 0.95 liters
Overall Diameter 10.11", 256.8 mm
Baffle Hole Diameter 9.13", 231.9 mm
Front Sealing Gasket Yes
Rear Sealing Gasket Yes
Mounting Holes Diameter 0.23", 5.8mm
Mounting Holes B.C.D. 9.6", 243.8mm
Depth 3.9", 99.1 mm
Net Weight 4.5 lbs, 2.04 kg
Shipping Weight 5.6 lbs, 2.54 kgs
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
Dust Cap Composition Solid composition paper dust cap

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