The performance of the Eminence Beta-12A-II 12" speaker is optimized for sound reinforcement systems. The Beta-12A-II is also suitable for lead and bass guitar, keyboards, guitar combos club music systems and stage monitors. Made in the USA. 7-year manufacturer's warranty!
Kapton coil former
Polyamide-imide coated copper voice coil
Vented and pole piece
Pressed steel basket
Cloth accordian surround
Power Handling (RMS)250 Watts
Power Handling (max)500 Watts
Frequency Response43 to 3,800 Hz
Sensitivity98 dB 1W/1m
Voice Coil Diameter2"
Magnet Weight38 oz.
Resonant Frequency (Fs)47 Hz
DC Resistance (Re)5 ohms
Voice Coil Inductance (Le)0.64 mH
Mechanical Q (Qms)6
Electromagnetic Q (Qes)0.50
Total Q (Qts)0.46
Compliance Equivalent Volume (Vas)4.24 ft.Â³
Mechanical Compliance of Suspension (Cms)0.29 mm/N
BL Product (BL)10.80 Tm
Diaphragm Mass Inc. Airload (Mms)40g
Maximum Linear Excursion (Xmax)4.4 mm
Surface Area of Cone (Sd)538.9 cmÂ²
Materials of Construction
Voice Coil Wire MaterialCopper
Voice Coil FormerKaptonÂ® / Polyimide
Basket / Frame MaterialSteel
Overall Outside Diameter12.03"
Baffle Cutout Diameter10.95"
# Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)