Eminence Beta 8A 8" Speaker 225Watt/8Ohm, 78Hz - 4.5kHz

Recommended for professional audio mid-bass applications or as a woofer in vented enclosures. Also suitable as a mid-bass speaker in sealed enclosures.

SPECIFICATION Nominal Basket Diameter 8", 203.2 mm Nominal Impedance 8 ohms Power Rating Watts 225 W / Music Program 450 W Resonance 65 Hz Usable Frequency Range 78 Hz - 4.5 kHz Sensitivity 95.1 Magnet Weight 34 oz. Gap Height 0.312", 7.92 mm Voice Coil Diameter 2", 50.8 mm

THIELE & Small Parameters Resonant Frequency (fs) 65 Hz DC Resistance (Re) 5.99 Coil Inductance (Le) 0.49 mH Mechanical Q (Qms) 4.95 Electromagnetic Q (Qes) 0.42 Total Q (Qts) 0.38 Compliance Equivalent Volume (Vas) 23.3 liters / 0.82 cu. ft. Peak Diaphragm Displacement Volume (Vd) 63 cc Mechanical Compliance of Suspension (Cms) 0.37 mm/N BL Product (BL) 9.6 T-M Diaphragm Mass inc. Airload (Mms) 16 grams Efficiency Bandwidth Product (EBP) 156 Maximum Linear Excursion (Xmax) 3.0 mm Surface Area of Cone (Sd) 210.0 cm² Maximum Mechanical Limit (Xlim) 7.4 mm

MOUNTING Information Recommended Enclosure Volume Sealed 5.7-9.9 liters/0.2-0.35 cu.ft. Vented 8.5-19 liters/0.3-0.67 cu.ft. Overall Diameter 8.24", 209.2 mm Baffle Hole Diameter 7.13", 181 mm Front Sealing Gasket fitted as standard Rear Sealing Gasket fitted as standard Mounting Holes Diameter 0.22", 5.5 mm Mounting Holes B.C.D. 7.75", 196.9 mm Depth 3.5", 89 mm

MATERIALS of Construction Aluminum voice coil Polyimide former Ferrite magnet Vented core Pressed steel basket Paper Cone Cloth cone edge Solid composition pape dust cap