Product Description
The EMINENCE USA ALPHA-10A (8 Ohm) is a professional-grade 10-inch loudspeaker designed for mid-bass applications in compact sealed or vented enclosures. Built in the USA, the Alpha-10A delivers smooth response, high sensitivity, and excellent reliability—making it ideal for PA systems, stage monitors, small cabinets, and multi-way speaker designs.
With a 150W RMS / 300W program power rating, a vented/extended core, a copper voice coil, and a pressed-steel frame, the Alpha-10A is engineered for dependable performance in demanding audio environments. Its wide usable frequency range of 57 Hz–4.5 kHz makes it suitable for mid-bass or low-mid duties in professional sound reinforcement.
Features
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Professional 10" mid-bass driver ideal for PA, stage monitors, and multi-way systems
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8-ohm impedance for broad amplifier compatibility
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Smooth, natural response from 57 Hz to 4.5 kHz
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150W RMS / 300W program power handling
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High sensitivity (95.6 dB) for strong output with less amplifier power
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Ferrite magnet with vented and extended core for cooling and stability
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Copper voice coil with polyimide former for durability
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Pressed steel basket and paper cone with cloth surround
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Works well in small sealed boxes or larger vented enclosures
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Built with quality USA construction trusted by professionals
Specifications
General
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Nominal Basket Diameter: 10" (254 mm)
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Nominal Impedance: 8 Ω
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Power Rating:
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Program Power: 300 W
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RMS/Continuous: 150 W
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Usable Frequency Range: 57 Hz – 4.5 kHz
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Resonance (Fs): 50 Hz
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Sensitivity: 95.6 dB
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Magnet Weight: 20 oz
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Voice Coil Diameter: 1.5" (38 mm)
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Gap Height: 0.25" (6.4 mm)
Thiele & Small Parameters
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Fs: 50 Hz
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Re: 5.31 Ω
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Le: 0.66 mH
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Qms: 5.21
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Qes: 0.66
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Qts: 0.59
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Vas: 82.2 liters / 2.9 cu ft
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Cms: 0.46 mm/N
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Vd: 114 cc
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BL: 7.5 T-M
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MMs: 22 g
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EBP: 76
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Xmax: 3.2 mm
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Xlim: 9.1 mm
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Sd: 355.4 cm²
Mounting Information
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Recommended Enclosure Volume:
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Sealed: 8.5–11.3 liters / 0.3–0.4 cu ft
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Vented: 28.3–53.8 liters / 1–1.9 cu ft
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Driver Displacement: 0.034 cu ft / 0.95 liters
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Overall Diameter: 10.11" (256.8 mm)
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Baffle Hole Diameter: 9.13" (231.9 mm)
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Mounting Hole Diameter: 0.23" (5.8 mm)
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Bolt Circle Diameter: 9.6" (243.8 mm)
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Depth: 3.9" (99.1 mm)
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Net Weight: 4.5 lbs (2.04 kg)
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Shipping Weight: 5.6 lbs (2.54 kg)
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Front & Rear Sealing Gasket: Yes
Materials of Construction
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Voice Coil: Copper
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Former: Polyimide
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Magnet: Ferrite, vented and extended core
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Basket: Pressed steel
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Cone: Paper
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Surround: Cloth edge
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Dust Cap: Solid paper
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