Eminence Alpha 12A, 12" Speaker 150Watt/8Ohm, 51Hz - 4.3kHz

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

SPECIFICATION Nominal Basket Diameter 12", 304.8 mm Nominal Impedance 8 ohms Power Rating Watts 150 W / Music Program 450 W Resonance 49 Hz Usable Frequency Range 51 Hz - 4.3 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) 49 Hz DC Resistance (Re) 6.3 Coil Inductance (Le) 0.79 mH Mechanical Q (Qms) 6.53 Electromagnetic Q (Qes) 0.88 Total Q (Qts) 0.77 Compliance Equivalent Volume (Vas) 121.5 liters / 4.3 cu. ft. Peak Diaphragm Displacement Volume (Vd) 125 cc Mechanical Compliance of Suspension (Cms) 0.32 mm/N BL Product (BL) 8.5 T-M Diaphragm Mass inc. Airload (Mms) 33 grams Efficiency Bandwidth Product (EBP) 56 Maximum Linear Excursion (Xmax) 2.4 mm Surface Area of Cone (Sd) 519.5 cm? Maximum Mechanical Limit (Xlim) 6.6 mm

MOUNTING Information Recommended Enclosure Volume Sealed 17-22.7 liters / 0.6-0.8 cu. ft. Vented 56.6-113.3 liters / 2-4 cu. ft. Overall Diameter 12.26", 311.4 mm Baffle Hole Diameter 11", 279.5 mm Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.25", 6.4 mm Mounting Holes B.C.D. 11.71", 297.5 mm Depth 4.73", 120 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 felt dust cap

• Manufacturer: Eminence
• Size (Inches): 12
• Power Output (Watt): 150
• Frequency Response from (Hz): 51
• Frequency Response to (Hz): 4.300
• Sensitivity (dB): 95,6
• Magnet: Ferrite