Eminence Beta 12A, 12" Speaker 250Watt/8Ohm, 43Hz - 3.8kHz

Recommended for professional audio and bass guitar applications as a woofer in a vented enclosure. Also works well for PA in a sealed or bandpass enclosure.

SPECIFICATION Nominal Basket Diameter 12", 304.8 mm Nominal Impedance 8 ohms Power Rating Watts 250 W / Music Program 500 W Resonance 47 Hz Usable Frequency Range 43 Hz - 3.8 kHz Sensitivity 98 Magnet Weight 38 oz. Gap Height 0.312", 7.92 mm Voice Coil Diameter 2", 50.8 mm

THIELE & Small Parameters Resonant Frequency (fs) 47 Hz DC Resistance (Re) 5.0 Coil Inductance (Le) 0.64 mH Mechanical Q (Qms) 6.00 Electromagnetic Q (Qes) 0.50 Total Q (Qts) 0.46 Compliance Equivalent Volume (Vas) 120.1 liters Peak Diaphragm Displacement Volume (Vd) 237 cc Mechanical Compliance of Suspension (Cms) 0.29 mm/N BL Product (BL) 10.8 T-M Diaphragm Mass inc. Airload (Mms) 40 grams Efficiency Bandwidth Product (EBP) 94 Maximum Linear Excursion (Xmax) 4.4 mm Surface Area of Cone (Sd) 538.9 cm² Maximum Mechanical Limit (Xlim) 11 mm

MOUNTING Information Recommended Enclosure Volume Sealed 25.5-35.4 liters, 0.9-1.25 cu.ft. Vented 36.8-139 liters/1.3-4.9 cu.ft. Overall Diameter 12.03", 305.5 mm Baffle Hole Diameter 10.95", 278.1 mm Front Sealing Gasket standard fitted as standard Rear Sealing Gasket standard fitted as standard Mounting Holes Diameter 0.25", 6.4 mm Mounting Holes B.C.D. 11.59", 294.3 mm Depth 4.57", 116 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 paper dust cap