Eminence Alpha 12A - 12" Lautsprecher, 8 Ohm

EMINENCE ALPHA 12A - 12'' 150 W 8 Ohm

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 cm² * 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