Eminence Alpha 12 150W 12 inch 8 Ohm Speaker Driver
Recommended for professional audio mid-bass applications in a small sealed or medium vented enclosure.
Technical specifications
- Nominal Diameter: 305 mm (12 in)
- Overall Diameter: 311.4 mm (12.26 in)
- Bolt Circle Diameter: 297.4 mm (11.71 in)
- Mounting Holes Diameter: 6.4 mm (0.25 in)
- Baffle Cutout Diameter: 280.9 mm (11.06 in)
- Overall Depth: 120.1 mm (4.73 in)
- Front Sealing Gasket: Yes
- Rear Sealing Gasket: Yes
- Impedance: 8 ohm
- AES Power: 150 W
- Program Power: 300 W
- Sensitivity: 95.6 dB
- Voice Coil Diameter: 38 mm (1.5 in)
- Voice Coil Material: Copper voice coil
- Voice Coil Former: Polyimide former
- Magnetic Gap Depth: 6.4 mm (0.25 in)
- Cone Material: Paper cone
- Dust Cap Material: Solid composition felt dust cap
- Surround Material: Cloth cone edge
- Chassis Material: Pressed steel basket
- Magnet Material: Ferrite magnet
- Magnet Weight: 20 oz
- Core Details: Vented and extended core
- Sealed Enclosure Size: 17-22.7 L
- Vented Enclosure Size: 56.6-113.3 L
Thiele and small parameters
- Resonance (Fs) - 49 Hz
- DC Resistance (Re) - 6.3 Ohm
- Voice Coil Inductance (Le) - 0.79 mH
- Mechanical Q (Qms) - 6.53
- Electrical Q (Qes) - 0.88
- Total Q (Qts) - 0.77
- Compliance Equivalent Volume (Vas) - 121.5 L
- Peak Displacement Volume (Vd) - 125 cm3
- Compliance (Cms) - 0.32 mm/N
- Force Factor (BL) - 8.5 Tm
- Moving Mass - System (Mms) - 33 g
- Efficiency Bandwidth Product (EBP) - 56
- Maximum Linear Excursion (Xmax) - 2.4 mm
- Diaphragm Area (Sd) - 519.5 cm2
- Maximum Mechanical Excursion (Xmech) - 6.6 mm
Shipping Information
- Net Weight: 2.4 kg (5.3 lbs)
- Shipping Weight: 3.36 kg (7.4 lbs)
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